Canadian scientists team up with Barbie to help girls imagine a ‘really cool career’ – University Affairs

Barbies You Can Be Anything campaign matches girls up with female mentors excelling in male-dominated fields.

Girls everywhere have been fans of Mattels iconic Barbie doll since the toy debuted in 1959. Victoria Kaspi, an astrophysicist at McGill University, was no different; she loved Barbies feminine clothing when she was a child, and played with the doll as much as she played with her Lego and math toys.

Barbie didnt serve as an inspiration for the career Dr. Kaspi has today. But Mattels You Can Be Anything campaign, in partnership with National Geographic, could be the inspiration some girls need to see themselves in male-dominated fields like astronomy. The campaign, which is in its fourth year, included the launch of five new Barbie dolls in careers where women are underrepresented, and a contest that sends girls from across Canada to spend a day with female mentors who work in those fields all in an effort to encourage girls to believe they can be anything. This years dolls represent the fields of astrophysics, polar marine biology, wildlife conservation, entomology and wildlife photojournalism. Dr. Kaspi, one of the mentors chosen for 2019, spent a day with her six-year-old mentee in August.

The five new dolls (left to right): astrophysicist, polar marine biologist, photojournalist, wildlife conservationist, and entomologist.

Barbie dolls are very popular among girls, Dr. Kaspi says. Getting these kind of careers to be normalized, to seem normal to little girls is one of the many things I think is important to do to increase the number of women in STEM.

The two visited Mont Megantic Observatory and the Astrolab museum near Sherbrooke, Quebec, and discussed astronomy, how astronomical equipment works and why understanding weather patterns is important for stargazing. Dr. Kaspi says the conversation went on naturally, as if the experience of women and girls together discussing the details of scientific research was a common experience. It was all presented in a positive light, Dr. Kaspi says. She adds that her mentee was really fun to be with, curious, inquisitive, a little shy.

Dr. Kaspi with her six-year-old mentee, Zoey.

Dr. Kaspi says there are intangible barriers that make it harder for women in science. You have to prove yourself a little bit more. You dont quite fit the mold, she says. To make your point in a crowd, or have your expertise trusted and believed, you have to go the extra mile to be accepted as an authority. She says the campaign isnt the one silver bullet that will solve the problem of underrepresentation of women in careers like hers, but its a step forward.

Sara Iverson, a professor at Dalhousie University, shared her marine biology expertise with an 11-year-old mentee as part of the campaign in July. They tagged sharks in the Atlantic Ocean and visited Dr. Iversons lab to meet graduate students and learn about the marine biology work the students do. Although the water was rough and half the boat crew got sick, including the little girl, Dr. Iverson says her mentee is a huge fan of sharks and was ultimately thrilled by the experience.

Its no secret Barbie has faced criticism for presenting an unrealistic body image and beauty standards. And over the years, the dolls interests and career choices have tended to fields traditionally associated with women shes been a teacher, ballerina, babysitter and baby doctor, just to name a few. But the fact that Mattel moved to creating dolls with different body types and different skin colours, and really trying to embrace different kinds of careers, I think thats a really good message, Dr. Iverson says.

My opinion is simply that little girls are going to play with Barbie, she adds. What better way to play with them than to use it to imagine a really cool career? I think outreach and education and messaging about imagining what you can do can come in all sorts of forms. And play is one of those forms.

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Canadian scientists team up with Barbie to help girls imagine a 'really cool career' - University Affairs

Astronomers Discover Massive Galaxy Surrounded by an Unexpected Halo of Tranquil Gas – SciTechDaily

An artists impression of CSIROs ASKAP radio telescope detecting a fast radio burst (FRB). Scientists dont know what causes FRBs but it must involve incredible energyequivalent to the amount released by the Sun in 80 years. Credit: OzGrav, Swinburne University of Technology.

Astronomers studying the outskirts of a distant galaxy have discovered the galaxy sits in a serene ocean of gas.

The massive galaxy, which is about four billion light-years from Earth, is surrounded by a halo of gas that is much less dense and less magnetized than expected.

The finding was published on September 26, 2019, in the journal Science.

Co-author Associate Professor Jean-Pierre Macquart, from the Curtin University node of the International Centre for Radio Astronomy Research (ICRAR), said gas on the outskirts of galaxies has traditionally been hard to study.

The halo of gas can actually extend out 10 times further than the stars in a galaxy, and can contain a substantial amount of the matter thats in a galaxy, he said.

But its very difficult to see the gas directly with a telescope.

Associate Professor Macquart said this discovery was made using a new technique involving fast radio burstspowerful flashes of energy from deep space.

Fast radio bursts come from all over the sky and last for just milliseconds, he said.

They involve incredible energyequivalent to the amount released by the Sun in 80 years.

Were not sure what causes them, and have only recently been able to pinpoint the galaxies they come from.

Associate Professor Macquart said the research team looked at how a single fast radio burst distorted as it traveled five billion light-years through the Universe.

Along the way, the burst shot through a galaxys halo of gas, like a lighthouses beam cutting through the fog.

Associate Professor Macquart said the researchers expected the signal from the fast radio burst to be distorted by the galaxy.

If you go out on a hot summers day, you see the air shimmering and the trees in the background look distorted because of the temperature and density fluctuations in the air, he said.

Thats what we thought would happen, that the signal from the fast radio burst would be completely distorted after passing through the hot atmosphere of the galaxy.

But instead of the stormy galactic weather we were expecting, the pulse we observed had traveled through a calm sea of unperturbed gas.

The finding suggests that galaxy halos are much more serene than previously thought, with gas that is less turbulent, less dense and less magnetized than expected.

One reason astronomers are so interested in galaxy halos is because they can help us understand why material is ejected from galaxies, causing them to stop growing.

An artists impression of Fast Radio Burst 181112 traveling through the halo of a galaxy 4 billion light-years from Earth. J. Josephides, Centre for Astrophysics and Supercomputing, Swinburne University of Technology.

University of California Professor of Astronomy and Astrophysics J. Xavier Prochaska, who led the research, said halo gas provides a fossil record of these ejection processes.

So our observations can inform theories about how matter is ejected and how magnetic fields are transported from the galaxy, he said.

Professor Prochaska said the team now plans to test other galaxies.

Our research appears to reveal something entirely new about galactic halos, he said.

Unless of course, this galaxy happens to be just some weird exceptionand with only one object you cant be sure about that.

A fast radio burst leaves a distant galaxy, traveling to Earth over billions of years and occasionally passing through clouds of gas in its path. Each time a cloud of gas is encountered, the different wavelengths that make up a burst are slowed by different amounts. Timing the arrival of the different wavelengths at a radio telescope tells us how much material the burst has traveled through on its way to Earth and allows astronomers to detect missing matter located in the space between galaxies. Credit: CSIRO/ICRAR/OzGrav/Swinburne University of Technology.

The research used a fast radio burst that was detected in November by CSIROs Australian Square Kilometre Array Pathfinder (ASKAP), in outback Western Australia.

The telescope is a precursor to the Square Kilometre Array (SKA), which will be the worlds largest radio telescope when its built in the next decade.

The study was led by Professor Xavier Prochaska from the University of California and involved 19 researchers from around the world.

We acknowledge the Wajarri Yamaji as the traditional owners of the Murchison Radio-astronomy Observatory (MRO) site and pay our respects to their Elders past, present and emerging.

Read Galaxys Tranquil Halo Illuminated by Enigmatic Radio Burst for more coverage of this topic.

Reference: The low density and magnetization of a massive galaxy halo exposed by a fast radio burst (PDF) by J. Xavier Prochaska, Jean-Pierre Macquart, Matthew McQuinn, Sunil Simha, Ryan M. Shannon, Cherie K. Day, Lachlan Marnoch, Stuart Ryder, Adam Deller, Keith W. Bannister, Shivani Bhandari, Rongmon Bordoloi, John Bunton, Hyerin Cho, Chris Flynn, Elizabeth K. Mahony, Chris Phillips, Hao Qiu and Nicolas Tejos, 26 September 2019, Science.DOI: 10.1126/science.aay0073

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Astronomers Discover Massive Galaxy Surrounded by an Unexpected Halo of Tranquil Gas - SciTechDaily

"Abodes of Advanced Life?" –Oldest Objects in the Universe Orbiting the Milky Way – The Daily Galaxy –Great Discoveries Channel

Globular clusters, of which seem to have formed together with the Milky Way, among the oldest objects in the universe, provide astronomers with natural laboratories for the study of stellar evolution processes and, perhaps, some speculate, may harbor advanced extraterrestrial life. An international group of astronomers using the CanadaFranceHawaii Telescope (CFHT) and Keck Observatory, has zoomed in on a satellite globular cluster, Laevens 3, one of 160 known to orbit the Milky Way in its galactic outer halo.

Globular clusters are among the oldest objects that formed about 11.5 billion years ago, 2.3 billion years after the Big Bang and shortly before the rate of cosmic star formation reached its peak, 10 billion years ago. This period is known as cosmic high noon. The clusters are very bright and can be seen at very large distances, which means that they can give us clues as to how the galaxies were assembled during this period of maximum star formation, says astrophysicist Rosa Amelia Gonzlez-Lpezlira, researcher at the Institute of Radio Astronomy and Astrophysics of the National Autonomous University of Mexico who was not involved in the new study.

Possible Abodes of Advanced Civilizations

In January of 2016 we quoted Rosanne DiStefano of the Harvard-Smithsonian Center for Astrophysics (CfA) who said that a globular cluster might be the first place in which intelligent life is identified in our galaxy. Globular star clusters are extraordinary in almost every way. Theyre densely packed, holding a million stars in a ball only about 100 light-years across on average, dating back almost to the birth of the Milky Way. And according to DiStefanos research, they also could be extraordinarily good places to look for space-faring civilizations.

Globular Clusters Orbiting the Milky Way Might Be the First Place Intelligent Life is Identified (CfA)

Located some 470,00 light-years away from the Earth, Laevens 3 (or Lae 3 for short) discovered in 2015 using the Pan-STARRS 1 telescope is a faint cluster, about eight billion years old, with a half-light radius of around 23 light-years and low metallicity. To put its distance in perspective, the Milky Ways disk is only 100,000 light years across, or about an amazing sixth of the distance to the Andromeda Galaxy.

Observation of Laevens 3 Globular Cluster

Observations of such faint and distant satellite systems, reports Tomasz Nowakowski at Phys.org, could shed more light on the formation and evolution of our home galaxy, which inspired a new study by a team of astronomers led by Nicolas Longeard of the Observatory of Strasbourg in France.

We present a photometric and spectroscopic study of the Milky Way satellite Laevens 3. Using MegaCam/CFHT g and i photometry and Keck II/DEIMOS multi-object spectroscopy, we refine the structural and stellar properties of the system, the astronomers wrote in the paper.

Globular Cluster Opportunity Harbors Milky Ways Oldest Known Planet

The study found that Laevens 3 is larger and older than previously thought. The color-magnitude diagram shows that it is about 13 billion years old.

According to the paper, all the results suggest that the cluster exhibits the main characteristics of Milky Way outer halo globular clusters. Moreover, the study found that Laevens 3 showcases signs of mass segregation, which confirms the globular cluster nature of this system.

Overall, Laevens 3 shares the typical properties of the Milky Ways outer halo globular clusters. Furthermore, we find that this system shows signs of mass segregation, which strengthens our conclusion that Laevens 3 is a globular cluster, the researchers concluded with an outer halo orbit with a pericenter of about 133,000 light-years and an apocenter of approximately 279,000 light-years..The Daily Galaxy via Phys.org and New Scientist

The Hubble image at the top of the page, Messier 54, could be just another globular cluster, but this dense and faint group of stars was in fact the first globular cluster found that is outside our galaxy.

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"Abodes of Advanced Life?" --Oldest Objects in the Universe Orbiting the Milky Way - The Daily Galaxy --Great Discoveries Channel

Faith And The Environment: Why Climate Change Is An Everything Issue – KJZZ

Katharine Hayhoe never meant to become a climate scientist. In fact, in college she started out studying astrophysics, but she needed one more class to finish her degree, and she found one in the geography department on climate science.

She said taking that class completely changed her perspective. It showed her that climate change isnt an environmental issue its an everything issue.

Since then, Hayoe has dedicated her life to the cause.

Shes now the director of the Climate Science Center at Texas Tech University, and she was just named a U.N. Champion of the Earth, the United Nations highest environmental honor.

Shes also an evangelical Christian who wrote a book with her husband whos also a pastor called "Climate for Change: Global Warming Facts for Faith-Based Decisions."

She was in Phoenix for the Geological Society of Americas annual meeting last week. The Show spoke with her about her work and why she calls climate change a threat multiplier.

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Faith And The Environment: Why Climate Change Is An Everything Issue - KJZZ

Galactic gas: A bump in the radio road – Particle

Galactic gas: A bump in the radio road

When you think about the shape of a galaxy, most of us can imagine the Milky Way and its spinning disc of stars.

But where a galaxy ends, theres still a lot of material surrounding it an area referred to as the galactic halo.

Astronomers have been studying these haloes over the years with the hope of learning more about the life cycle of galaxies.

A group of physicists have discovered something unusual about the galactic halo, and it could be a piece in the puzzle of why galaxies stop growing.

Image|J. Josephides, Centre for Astrophysics and Supercomputing, Swinburne University of Technology.

An artists impression of Fast Radio Burst 181112 travelling through the halo of a galaxy 4 billion light-years from Earth.

To explain what was found by this multinational team of astrophysicists, we first need to talk about fast radio bursts (FRBs).

FRBs are powerful flashes of energy from deep space that appear for mere milliseconds in our night sky.

Depending on what these bursts pass through as you can see in the video below the light can arrive distorted in a variety of ways.

In November 2018, an FRB was detected that had passed through a galaxy 4 billion light years away.

This burst was picked up by the Australian Square Kilometre Array Pathfinder (ASKAP) radio telescope in outback Western Australia.

When this burst passed through the galaxy, researchers expected the wild and stormy gases in its galactic halo would distort the signal.

What they found instead was a tranquil sea of gas surrounding the galaxy.

Video|CSIRO/ICRAR/OzGrav/Swinburne University of Technology.

A fast radio burst leaves a distant galaxy, travelling to Earth over billions of years and occasionally passing through clouds of gas in its path

Galactic haloes have always been difficult to study, according to astrophysicist Associate Professor Jean-Pierre Macquart.

The halo of gas can actually extend out 10 times further than the stars in a galaxy and can contain a substantial amount of the matter thats in a galaxy, he says.

But its very difficult to see the gas directly with a telescope.

Jean-Pierre is from the Curtin University node of the International Centre for Radio Astronomy Research (ICRAR), which manages ASKAP, and is a co-author of the study.

The study brought together astronomers from around the world with researchers from Australia, Japan, Korea, America and Chile.

He says the research team looked at how a single FRB distorted as it travelled 5 billion light years through the universe.

They believed the signal would be distorted by the galactic halo, much in the same way heat can cause air to shimmer.

Thats what we thought would happen that the signal from the fast radio burst would be completely distorted after passing through the hot atmosphere of the galaxy, says Jean-Pierre.

But instead of the stormy galactic weather we were expecting, the pulse we observed had travelled through a calm sea of unperturbed gas.

It means these gas haloes could be a lot less turbulent than astronomers thought, with less density and magnetisation.

Image|OzGrav, Swinburne University of Technology.

An artists impression of fast radio bursts (FRBs).

University of California Professor of Astronomy and Astrophysics J. Xavier Prochaska led the research and says halo gas has a similar use to fossil records only on a galactic scale.

Our observations can inform theories about how matter is ejected and how magnetic fields are transported from the galaxy, he says.

Our research appears to reveal something entirely new about galactic haloes.

Unless of course, this galaxy happens to be just some weird exception and with only one object, you cant be sure about that.

Finding another FRB which has travelled through a galaxys halo is the next big test.

And if we find the same results, it could help us figure out why galaxies suddenly stop growing.

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Galactic gas: A bump in the radio road - Particle

‘Ad Astra’ is enjoyable, but fails to deliver on many expectations – The Massachusetts Daily Collegian

'Ad Astra' is an unique popcorn flick packed with adventure, excitement and drama.

By Jeffrey Epro, Collegian CorrespondentOctober 1, 2019

Ad Astra, starring Brad Pitt and Tommy Lee Jones, has been hailed as this years Interstellar. I walked into the theater expecting to be blown away with lots of science, character development and philosophical-thought-fostering questions. But out of all three, Ad Astra only delivers on one, maybe two and that is not necessarily a bad thing.

The opening scene is of Roy McBride (Brad Pitt) giving a meaningful monologue about his mission. Cosmic rays have been blasting the Earth from an unknown origin outside of Saturn. As McBride is en route to repair external damage of the satellite, he is hit yet again by another cosmic blast. It seems he is doomed, but he stays calm in the face of adversity. He becomes focused, analyzing the situation he is in and does everything in his power to stay conscious during his descent to Earth. After recovering from his fall, he is enlisted by the space agency yet again this time to travel to Mars and send a message to Neptune in hopes of establishing contact with his long-lost father, played by Tommy Lee Jones.

It is unfair to walk into Ad Astra with hopes of feeling scientifically satisfied. Even though the film is branded as a science fiction movie, director James Gray only puts emphasis on the fiction aspect of this genre. The science of Ad Astra, whether it be astrophysics or space travel, could have been written by a middle-schooler in a creative writing class, to the point where it is almost insulting. It feels like the writers made a conscious decision to involve as little science as possible. In one scene, while Clifford McBride is gathering himself in the safety of a spaceship traveling to another planet, his fellow astronauts are seen in the background amusing themselves by playing with food in zero gravity. Their whole purpose of this scene is to see the astronauts play with their food and laugh about it. Other examples include impossible zero gravity leaps from spacecraft to spacecraft, characters not being ripped apart by space shrapnel and space monkeys. Science and the accuracy of space travel wasnt just set on the back burner in this film, it never made it on the grill.

Despite failing to live up the science that is expected with a space movie, Ad Astra uses the genre of science fiction as a medium to convey a story. What makes science fiction unique is that it allows storytellers to explore ideas otherwise unavailable in other genres, such as infinite, extraterrestrial life and time dissonance. One might claim that the genre of fantasy or fiction can accomplish the same goal in expressing abstract ideas, but science fiction is different in the way that it involves modernity. The presence of political turmoil and social commentary enrich the world-building of Ad Astra.

Theres plenty of common genre tropes that are present in the movie. The only reason that there is even a resemblance of meaningful character development is because of the monologues delivered in the form of video transmissions and journal entries. Without these, the intentions and thoughts of the main character McBride would be completely unknown and viewers would be devoid of any sympathy for the characters in this film. At some points in the film I had to wonder if McBride was actually a superhero because of his robust showcase of strength and intelligence. His ability to make all the right decisions is astonishing, but he is emotionally unavailable due to trauma hes experienced as a young child. This internal struggle aims to be the heart of the film.

McBride is a textbook astronaut hero. It almost seems like propaganda at some points with how well Brad Pitt personifies a perfect American astronaut. Despite this, it is still entertaining to watch. McBride has never had his heartbeat break 80 BPM while hes in the field on a mission. He has a wife, but remains detached so his emotions do not impede his decision-making. He has dedicated his life to space. He lives by the Latin quote Per aspera ad astra through hardship to the stars.

Gray perfectly captures the essence of space with beautiful cinematic shots expressing the magnitude of the position that these astronauts are in. This is a beautiful constant throughout the movie and reinforces the idea that the astronauts are in a foreign yet shockingly stunning environment. Ad Astra is rife with gorgeous cinematography and production design.

All in all, Ad Astra is a beautiful mess. I didnt get the Interstellar that I was prodded to expect from the trailers, but it had me on the edge of my seat the whole time. If you can look past some of the questionable decisions that the writers made and some glaring plot holes, it is an action-packed and exciting movie to enjoy.

Jeffrey Epro can be reached at [emailprotected]

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'Ad Astra' is enjoyable, but fails to deliver on many expectations - The Massachusetts Daily Collegian

Company Seven | Astro-Optics Index Page

To learn more about how this site is arranged and how to navigate it, or for those new to Company Seven please Click Here. To learn more about the latest activities, web page changes, and developments at Company Seven then visit our News and Developments page. For those new to astronomy, we also provide Observing Plan Aids to help them learn the sky.

On 8 January 2019 we celebrate 39 years of defining competence and integrity as a business, with 35 of these years promoting our hobby and our international astronomy community from our Laurel, Maryland showrooms

39 & 35

We fondly remember:

Bruce Roy Wrinkle (b. 7 August 1945, d. 28 April 2013) was the soul of our showroom; kind, witty, intelligent, and able to greet you with a funny joke. Bruce was was amazingly well read, able to hold conversations with doctors and scientists on matters from prions to dark matter. And he was our friend, a true friend in every sense of the word and every day without him lacks some luster.

And Robert Kim Carter (b. 18 Jan 1962, d. 23 April 2005) whose friendship and support originally brought this site on line in 1994. Robert founded one of the first Internet Service Providers of "Internet Valley", Digital Gateway Systems, Inc. in Vienna, Virginia. DGS used to be to ISP's, as Company Seven is to our industry.

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Company Seven | Astro-Optics Index Page

Astronomy Ireland | Studying Astronomy

Astronomy Ireland are run a twice yearly series of Evening Classes in many towns and cities all around the country.More details HERE

As the national astronomy society in Ireland with 3,000 active members and an even bigger public following we receive a lot ofrequests for information like this so we are very keen to provide a listing of every course in Ireland and you can help us bykeeping us up to date on changes or additions so we may keep this website up to date at all times.

Astronomy Ireland takes on people/students for Work Experience. Typically these are young people doing Transition Year studentsbut we also take on people doing FS courses and others. Email office@astronomy.ie or call 086 06 46 555.

There are still some copies of the Astronomy and Space educationsupplement with what to study and where. Be sure you get your copy.

Astrophysics DeptTel:(021) 4903211

B.Sc in Physics with AstronomyCourse Director: Dr. Enda McGlynnTel: (01) 7005000

Physics with Astronomy and Space ScienceCourse Director: Lorraine HanlonTel: (01) 7162214

B.Sc. in Physics with AstrophysicsCourse Director: Ray ButlerTel: (091) 493788Email: ray.butler@nuigalway.ie

Physics with AstrophysicsHead of Department: Prof. J. Anthony MurphyTel: (01) 7083771

Physics with AstrophysicsHead of School: Prof. James Lunney.Head of Astrophysics: Dr. Peter Gallagher Tel: (01) 896 1300

The Department of Applied Physics& Instrumentation offers postgraduate studies in astrophysics, with emphasis on the development of high-speed imagingdevices.Tel: (021) 4326369

The Department of Physics and AstronomyDepartmental Office physics@qub.ac.ukTel 028 9097 3941

There is an active research community of about 150 Irish astronomers (2007) in the universities of Ireland and D.I.A.S. who canbe contacted at: http://www.arm.ac.uk/asgi

The ASGI holds 2 meetings a year in one of the member institutions, usually around the date of the equinoxes, that last 1 or 2days where short talks on a wide variety of subjects are present and a guest speaker from abroad is usually invite. ASGI also hasan emailing list with notices of meetings, study and job vacancies, etc. Contact the secretary at their website.

If you have any comments, additions or changes email to tom@astronomy.ie

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Astronomy Ireland | Studying Astronomy

Company Seven | Astro-Physics 155mm f7 Telescope, 2.7" Focuser

155mm f7 STARFIRE EDF APOCHROMATIC REFRACTOR ULTRA-PORTABLE WITH 2.7" FOCUSERthe world-renowned standard of excellence against which all others six inch Apos are measured

Originally introduced with the avid astrophotographer in mind, the 155mm f7 StarFire EDF (6.1 inchaperture) astrograph features the gigantic focuser and included the Field Flattener lens option accommodating up to Pentax 6x7cm camera format with full field illumination. It made an astounding versatile visual telescope too; capable of extraordinarily wide fields of view at lower magnifications, with the capacity to reveal subtle features on the planets at high magnifications that few other 25 lb. telescopes can show. The astronomy community came to appreciate theversatility of this instrument and at the urging of our customers, we now offer the same excellent 155mm f7 lens in a lighter weight tube assembly incorporating the highly regarded Astro-Physics 2.7 inch focuser.

We continue to be amazed at the compact size of this instrument. At last, a 6.1 inch Apo refractor with an overall length of 40 inches (with dewcap retracted). This is less than half the length of an fl5 and approximately a foot shorter than an f9! In fact, it is about the same length as our 130mm f8, but with an inch more of aperture! You can transport it in a smaller car, store it in less space, invest in a smaller mount and shorter pier/tripod. This instrument is the fulfillment of the astronomer's dream for a truly portable 6.1 inch refractor.

This refractor can, of course, be used photographically with a 35mmcamera at prime focus with only a simple camera adapter or at afast f5.2 with the optional flat- field telecompressor. A single element field flattener is available for the Pentax 6 x 7 medium format camera,however the field is vignetted in the corners due to the restrictions of the 2.7" focuser (full coverage requires the 4"focuser/4" field flattener combination). The 2.7" focuser isinterchangeable with the 4" model should you choose at some timein the future to upgrade to the full EDF 4" package.

"Optical performance of the 155EDT was impressive. It producednary a trace of false color even on Venus. Equally impressive, thisscope provided superb images as soon as it was set outside. Evenin sub-freezing temperatures, image quality, though not perfect atfirst, was surprisingly sharp from the start. In cold weather, after amodest settle-down time of 30 minutes, in-focus star images weretextbook Airy disks with a well-defined first diffraction ring and atrace of a second outer ring. There was no sign of sphericalaberration, lens figure changes, heat plumes, or distorted Airy disksdue to tube turbulence."

We could not have said it better ourselves.

For 2004 Astro-Physics has developed a new specially designed dual-speed pinion fine dual speed geared focuser assembly. Incorporating a 9 to 1 geared reduction knob, this is the Feather Touch Micro Focuser option. It is available as an retrofit kit for existing compatible Astro-Physics focusers. Or you can order it factory installed in your new Traveler telescope.

Right: Feather Touch Focuser option on Astro-Physics 155 mm EDF Apo telescope, optional Astro-Physics 8x 50mm Finder also shown (54,384 bytes).Click on image for higher quality, enlarged view (125,877 bytes).

Left: Color correction of the Astro-Physics 155 mm EDF Apo telescope (69,285 bytes).Click on image for higher quality, enlarged view (178,123 bytes).

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Company Seven | Astro-Physics 155mm f7 Telescope, 2.7" Focuser

Company Seven | Astro-Physics 305mm f3.5 / 12 Inch f3.8 …

Astro-Physics 305mm f3.5 / 12 Inch f3.8 Riccardi-Honders Astrographic Telescope (P/N 305RHA)An amazing 1,160mm f3.8 Apo Lens!

Development of the Riccardi-Honders Design

Astro-Physics Company are known for making the world's most advanced, versatile, and desired lines of apochromatic refractor telescopes. In 2000 after more than a decade of research and development to "get it right" they surprised the astronomy community with the announcement of their first production Catadioptric telescope. This is designated the Astro-Physics Astro Physics 10" f14.6 Maksutov-Cassegrain telescope, a compact 33 lb. (15 kg) high resolution instrument designed to provide refractor like views (and images) of the brighter, small objects including the planets, moon, double stars, and the like.

Right: Astro-Physics 305mm Honders telescope (OTA to the left) as introduced in 2009 atop the Astro-Physics 3600GTO 'El Capitan' German Equatorial Mount (79,387 bytes). Image courtesy of David Illig.Click on image to see enlarged view (253,556 bytes).

Since then Astro-Physics has been working to perfect a new catadioptric telescope, one ideally suited for imaging wide areas of sky and not compromised by considering visual applications. This new telescope would be compact, perform well in temperature extremes around the world, and meet their traditional exacting requirements for optical and mechanical excellence. The result is a telescope that is the first of its kind: the Astro-Physics 305mm f3.8 Astrograph. The 'Honders" as it is known here at Company Seven and in most of the community is based on Klaas Honder's original idea of a fast optical system using a crown glass objective and meniscus correcting mirror in a Newtonian configuration. By adding a secondary mirror and field lens, Italian designer Massimo Riccardi was able to design an ultra-fast (short focal ratio) astrograph using only comparatively affordable crown glass elements. Astro-Physics has added their more than years of telescope design experience to create a truly unique and fast astrograph to take full advantage of today's CCD imaging cameras. With this telescope you will collect photons most efficiently producing wide-field of view images that you could previously only have imagined.

A further goal in this development effort was to equal or to approach the performance of their highly prized triplet apochromatic refractors in at least certain applications. One thought in producing these Catadioptric telescopes is that if a number of customers who do not require the versatility of the Apo refractors (which perform superbly well at extremely high magnifications, and down to very low magnifications) will order the Mak telescopes instead of the triplet Apos then this may take some of the burden from the Triplet production line, and thereby help Astro-Physics to satisfy a far greater number of the more demanding amateur and professional clientele.

In April 2008 Roland Christen had presented a paper entitled "Optical Design for High Resolution Imaging" discussing the advantages of the Riccardi-Honders optical design. The prototype 305mm f3.8 Riccardi-Honders Astrograph prototype was introduced to the public on 18 April 2009 (image at right) although by then it had already proved itself with numerous amazing images taken while at the Astro-Physics observatory. It was shown mounted in parallel with the prototype 305mm f12.5 Maksutov-Cassegrain telescope atop the Astro-Physics 3600GTO 'El Capitan' German Equatorial Mount. Pricing was announced in August 2010 as the first invitations to order were sent out. Deliveries from the first production run will commence in limited numbers in the Fall of the year 2010.OPTICAL CHARACTERISTICS

The system includes the optical tube assembly, a 3.5 inch diameter focuser, Dewcap (Lens Shade), Dust Cover, pair of Mounting Rings, and Carrying Case. Company Seven will offer an optional Airline Transport Association Approved (ATA) shipping case for this instrument.

Any optical imperfections such as a degree of surface roughness and zonal errors on the optical surface will compound the problem.Astro-Physics tested a commercial telescope where the central obstruction, optical errors and surface roughness were large enough to cause the first diffraction ring and central Airy disc to have almost equal brightness (with a 35% obstruction, theoretically there should be at least a4 to 1 difference). Even so, this sample telescope "tested" very well on the star test - it had quite similar inside and outside Fresnel patterns and might be judged to be textbook perfect by the star test. Yet it was a very poor performer on all but the most steady of nights, when the seeing was essentially perfect. The slightest motion in the atmosphere would result in a display of "cotton ball" stars. This is one reason whyAstro-Physics and Company Seven have not been a major fans of the "star test" to evaluate the actual performance of a telescope. The only unbiased way to measure an optic is with interferometry, or by an MTF (modulation transfer function) test, or with a PSF (point spread function) test, which measures the relative strength of the Airy disc versus the diffraction rings with the image in focus.

Astro-Physics has endeavored to achieve the highest absorption of stray light possible by employing state of the art baffling and anti-reflection techniques; this will help to provide the user with maximum contrast. The exterior of the telescope is finished in a durable textured off white finish, with black anodized focuser and cells; these will retain their beauty for many years. You will appreciate the unique design and fine craftsmanship of this telescope.

Knife edge baffles are machined into the walls of the telescope optical tube and of the focuser draw tube, these and painted flat black in order to maximize contrast by essentially eliminating any internal reflections. The inside diameter (I.D.) of the draw tube permits the avid astrophotographer to employ up to a 35mm format film or CCD camera to capture images. While this is designed as an astrographic instrument, you can attach a Barlow lens then attach standard 2 inch diameter accessories, and with the furnished 1.25 inch adapter (threaded for 48mm filters) to use common oculars and accessories too. Recessed brass locking rings are installed at each thumbscrew location; as you tighten a thumbscrew a brass locking ring clamps onto the part that has been inserted; consequently the focuser draw tube and any accessories are held securely in place and will not mar the surface of your accessories. This is particularly important considering the heavy and expensive accessories that you may use.

* Specifications are subject to change without notice.

Right: Company Seven ATA Case custom fitted for a Astro-Physics 13cm EDT Apochromat Telescope with 2.7 inch Focuser (65,974 bytes).Click on image to see enlarged view (215,942 bytes).

Features include:

Left: Astro-Physics Model 900 Mount in optional Company Seven ATA case.Case 1 of 2 shown here, with Declination housing (left side shown) with GTO Keypad Controllerand Counterweight Shaft (94,326 bytes).

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Company Seven | Astro-Physics 305mm f3.5 / 12 Inch f3.8 ...

Freedom of Speech by Norman Rockwell – Facts about the …

Freedom of Speech was the first in a series of four paintings which depict examples of the four basic freedoms of Americans. Freedom of Speech depicts a young man who appears to be of the American working class, given his plain clothing over which he wears a plain, brown jacket. Protruding from a front pocket of the jacket is a folded document that appears to bear importance in the matter at hand.

This main character of the painting is standing in the midst of a meeting of importance to the locality in which he lives and/or works. He is surrounded by older gentlemen, wearing traditional suits and ties, but who are looking at him with a degree of curiosity mixed with consideration for the young mans oratory. The young man appears to be unfazed by his modest attire in the midst of formality, focusing instead on the subject matter that concerned him to the extent that he felt it necessary to attend this meeting and speak his mind.

Freedom of Speech was painted by renowned American artist, humorist, and painter, Norman Rockwell. The inspiration for the painting came from the State of the Union address, delivered in January of 1941 by President Franklin D. Roosevelt, in which he set forth the four basic freedoms that Americans have the right to enjoy. This painting was the first of the series and appeared on the cover of The Saturday Evening Posts February 20th issue.

Mr. Rockwell, in his usual style, includes discreet inferences in this painting which may not be immediately obvious upon initial viewing. For instance, the bench immediately in front of the young man is conspicuously empty. This has been viewed by some as an invitation to the viewer to attend the meeting as well. Others see the empty bench as a portrayal of the fact that someone did not feel compelled to attend the meeting.

Another interesting fact behind this painting is Mr. Rockwells inclusion of the faces of people he knows in his work.

And, finally, the manner in which he pointedly signs his own name in the dark background of the painting depicts his own humility in the face of such a powerful message.

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Freedom of Speech by Norman Rockwell - Facts about the ...

Astrophysics for People in a Hurry: Neil deGrasse Tyson …

Neil deGrasse Tyson makes a big bang with Astrophysics for People in a Hurry.- Sloane Crosley, Vanity Fair

Tyson is a master of streamlining and simplification....taking mind-bogglingly complex ideas, stripping them down to their nuts and bolts, padding them with colorful allegories and dorky jokes, and making them accessible to the layperson- Salon

This book will keep you fascinated with succinct and dynamic explanations of a wide variety of astronomical topics. A winner that every astronomy enthusiast should have on the bookshelf!- David J. Eicher, Astronomy

This may have been written for people in a hurry, but I urge you to take your time. It will all be over far too soon.- BBC's Sky at Night

Engaging and illuminating.- GoodReads

Tyson manifests science brilliantly....[his] insights are valuable for any leader, teacher, scientist or educator.- Forbes

Astrophysics for People in a Hurry will blow your mind....it is awesome.- Hackernoon

Infectiously enthusiastic, humorous and, above all, accessible....reading Astrophysics for People in a Hurry is both a humbling and exhilarating experience.- BookPage

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Astrophysics for People in a Hurry: Neil deGrasse Tyson ...

Astrophysics School of Physics

The Astrophysics group in the School of Physics spans cosmology, extragalactic astronomy, extreme objects, relativistic astrophysics, and knowledge management associated with virtual observatories and software telescopes. Our research programs, comprising theoretical, observational and computational studies, are aligned with the major international facilities such as the Murchison Widefield Array (MWA), Square-Kilometer Array (SKA), Australian Square-Kilometer Array Project (ASKAP), the Hubble space telescope, South Pole Telescope (SPT), POLARBEAR and the Simons Array, Simons Observatory and Laser Interferometer Gravitational Wave Observatory (LIGO). We are also leading Australias first space telescope program, SkyHopper.

The Astrophysics group currently hosts nodes in three ARC Centres of Excellence: OzGrav for gravitational wave astronomy, CAASTRO for all-sky astronomy, and ASTRO-3D to study the Universe in 3 dimensions.

Please contact us to learn more about the research projects and study opportunities available in our group, for undergraduate, Masters, and PhD students. More information can be found on the Study link. We invite applications for our Master of Science (MSc) and Doctorate (PhD) Physics degrees!

View of the Murchison Widefield Array. Credit: MWA

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Astrophysics School of Physics

Astrophysics – Play it now at Coolmath-Games.com

'); } else { //console.log("User may have come from google or is within the free game limit "+ (freeGameLimit-userPlayedGames) ); //TODO Display Game removeAdSwfJWPLayer(); } } //display to user how many free games left once page load completes. if (window.addEventListener) window.addEventListener('load', checkPageLoad, false); else if (window.attachEvent) window.attachEvent('onload', checkPageLoad); else window.onload = checkPageLoad; }}function checkPageLoad() {//console.log("checkPageLoad: Checkers test "); if(freeGameLimit) { freeGamesLeft = ((freeGameLimit - userPlayedGames)); } else { freeGamesLeft = 0; } if(freeGamesLeft === 0) { var zeroFreeGamesLeftUsers =localStorage.getItem("zeroFreeGamesLeftUsers"); if(zeroFreeGamesLeftUsers == null) { localStorage.setItem("zeroFreeGamesLeftUsers","1"); if(typeof __gaTracker !== "undefined") { __gaTracker('send', { 'hitType': 'event', // Required. 'eventCategory': "ZeroFreeGamesLeftUsers", // Required. 'eventAction': subscriberLeg, // Required. 'eventLabel': document.title, 'eventValue': "0", 'nonInteraction': 1 }); } } } //Replace Go Ad Free header promo with parents and teachers promo if(typeof freeTrialUser !== 'undefined' && freeTrialUser && typeof targeted_state !== 'undefined' && targeted_state && jQuery('.panel-pane.pane-block.pane-bean-subscriber-promo').length) { jQuery('.panel-pane.pane-block.pane-bean-subscriber-promo').replaceWith('') } else if(typeof freeTrialUser !== 'undefined' && freeTrialUser && typeof targeted_state !== 'undefined' && targeted_state && jQuery('.panel-pane.pane-block .pane-bean-subscriber-promo').length) { jQuery('.panel-pane.pane-block .pane-bean-subscriber-promo').replaceWith('') } subscriptionSignUpUrl(); if(Drupal.settings.isSubscriptionActive == false && getCookie('cmg_l') !== null) { subscribeNowAlienClass = "subscribe-now-alien-subscribe"; }else if(getCookie('cmg_l') == null) { subscribeNowAlienClass = "subscribe-now-alien"; }else if(getCookie('cmg_l') == null && subscriberLeg == 'Default Leg') { subscribeNowAlienClass = "subscribe-now-signup"; } var alreadySubscriberText = '

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Company Seven | Vixen GPDX German Equatorial Mount page

Overview: What is the GPDX and when do we recommend it?

The GPDX is one of the most massive of the three "Great Polaris" series German equatorial mounts manufactured by Vixen Co., Ltd. The other model GP mounts include the lighter weight GPE model, and another which is similar in appearance to the GPE but is its better accessorized cousin the GP. The GP series are the descendants of the Vixen "Super Polaris" mounts which came to dominate the 1980's. In the USA the Super Polaris were distributed under the Celestron trademark. The heavier duty "Super Polaris DX" was not made available in the USA until 1989 when it was evaluated by Roland Christen, founder of Astro-Physics company who imported it for sale to the USA through both Astro-Physics and Company Seven. The SP-DX was considered a suitable but relatively economical platform for their then new 12cm f8.4 ED doublet Apochromat, and their 4 and 5 Inch f8 Apo telescopes.

The Great Polaris are an improved, modular German equatorial mount system where the customer is allowed to tailor the system to their particular needs choosing from a broad selection of accessories. The GP-DX mount closely resembles the more compact and portable GP mount however, this belies it's notably superior payload handling and tracking. The GP-DX differences include durable steel is used for the R.A. and Declination Axes shafts, the worm wheels are made of brass (to about double the tolerance of the GP) on improved bearings to provide smooth and stable operation. Accordingly, the GP-DX mount head weighs almost twice as much as the GP.

alignment to within 3 minute accuracy possible, bubble-level, fine adjustment knobs for both altitude and azimuth, and one 8 lb / 3. kg counterweight are provided. Refinements include a Dovetail Plate hardware mechanism to facilitate the quick interchange of payloads, a better selection of tripods and electronic drive systems.

Company Seven recommends the GPDX to accommodate payloads including:

* there are factors acting upon a German mount affecting its suitability including: payload weight and length (torque), payload area and profile exposed to winds, desired tracking accuracy, tripod or pier resonance's, etc. What are most important to the user is how rigidly the mount holds the payload, how smoothly it tracks (amplitude and smoothness of the periodic error of a gear), and how well it overcomes the moment imparted by the load. The final operating weight put onto a mount can also depend on how the instrument is to be accessorized.

If you wish to buy a most economical, and relatively light weight refined mount that can manage your payload for manual visual operations, or for simple driven uses then the GPDX can make sense. The GPDX can provide a lifetime of service, and it is deserved by many better quality telescopes including the Astro-Physics 105 'Traveler' or 130 mm f6 EDF, or the TeleVue NP101 and 102 or 127, etc. where the cost of the GPDX can be readily justified. And the choices of simple electronic drive systems are better for the GPDX than those available for most other mounts at or below the cost of the GPDX mounts. But when one gets to the point of buying a complete new GPDX delivered with dual axis drive controller, two motors, two clutches, etc. then the cost climbs into the realm of superior alternatives.

For those who observe from wind prone locations, or for those who intend to become involved in longer time exposure astrophotography or CCD imaging then we suggest you consider one of the following mounts because of their more sophisticated electronics, and even better weight bearing and tracking performance:

The GPDX mount is available as a Mount Head with Quick Release Saddle including Counterweight Shaft, 8.14 lb / 3.7 kg Counterweight, 6x 20mm Pole Alignment Finder telescope with illuminated North and Southern hemisphere reticle, bubble-level, and fine adjustment knobs for both altitude and azimuth. To arrange a complete system one orders the other components "ala carte" buying only what is needed from a selection of good choices.

Below Right: A complete Vixen 150mm f5 reflecting telescope shown on an GPDX German Equatorial Mount with standard 3.7 andwith optional 1.9 kg counterweights, DS-1 Single Axis Drive, HAL110 Aluminum Field Tripod (39,881 bytes).Click on image to see enlarged view (164,592 bytes)

A complete GPE mount system will usually consist of these components:

Company Seven offers a number of third party accessories for the GP/GPDX mounts. These include Digital Setting Circle with Encoder sets, or optional fitted Carrying Bag (sample shown at right) which can provide for safer, and more convenient transport the mount with tripod attached, or one for the Tripod alone. Please understand that these are very convenient and padded lightweight bags however, these are not suitable for shipping a telescope or mount. Company Seven do offer rather costly buy sometimes necessary Airline Transport Association approved shipping cases for these products which are suitable for check in on aircraft, or shipping by common carriers.

Please visit Company Seven's showroom to see examples of these Vixen systems firsthand. Or you may Contact Company Seven for help putting together a system for you.

GPE Features and Specifications

Vixen GPE Optional SD-1 Electronic Drive Specifications

Vixen GPE Optional DD-1 Electronic Drive Specifications

Specifications and availability subject to change

Drive System Power Requirements, Sources

The SD-1 Drive Controller for the GPE/GPDX mounts operates from 9 volt DC power sources, it is provided with a cluster battery holder for six alkaline "C" cell batteries, and power cord. For convenience it is probably best to keep feeding the SD-1 the provided battery pack as it needs them. For operations in below freezing conditions then we recommend you keep the battery pack for the SD-1 in a warm area, possibly in a coat pocket when working near the telescope. Otherwise you may use more costly lithium batteries which perform better at lower temperatures.

The DD-1 Drive Controller for the GPE/GPDX mounts is provided with a cluster battery holder for eight alkaline "D" cell batteries, and power cord. The DD-1 and other common telescope powered accessories (Kendrick Dew/Frost Prevention System, CCD cameras, etc.) require a 12 volt D.C. power source. If you prefer a longer life or more cost effective power supply then Company Seven suggests the user consider one of these following options:

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Company Seven | Vixen GPDX German Equatorial Mount page

Simon Lane | Yogscast Wiki | FANDOM powered by Wikia

SimonReal Name

Simon Charles Lane

Honeydew, Honeybeard, Derek Smart, Alejandew

2008 (Co-Founder)

Yes

Creative Director at Yogscast Ltd, YouTube Content Producer at Yogscast Ltd

"See ya later, Shitlord(s)!"

Simon Lane, under the username Honeydew, is a founding member of the Yogscast, and runs the main Yogscast YouTube channel with Lewis Brindley. He is known for playing a dwarf in any situation he can. He is renowned for being a strongman, entertainer, astronaut and a budding musician.

Lewis and Simon have uploaded an enormous variety of content, such as Minecraft adventure maps and mini-games, Garry's Mod, indie games, and many collaborations. Some of Lewis and Simon's most popular Minecraft series include YogLabs, Jaffa Factory, JaffaQuest, Hole Diggers, Deep Space Mine, Lucky Block Challenge, and of course, Shadow of Israphel. When playing Minecraft he has a fondness of pigs, Jaffa Cakes, fire and things that explode.

Simon is the creative force behind The Yogscast, known as the singer of "Diggy Diggy Hole" and "The Man of a Thousand Voices, all of which sound oddly similar". Simons charm, wit and endearing silliness are unmatched. He is the co-founder of the Yogscast.

Simon has, on rare occasions, managed to hijack the BlueXephos channel on YouTube, enabling him to post content in which he is the central character. This content tends to be superficially innocent and light, but upon closer examination reveals a twisted, diabolical malevolence and passive aggressive Machiavellian instinct that can only mean Simon's ultimate goal for the Yogscast is total world domination. These videos generally fall into two basic yet far-reaching categories, which are: Simon Sings, and Simon Plays. The Simon Playsseries are simple Let's Play videos of various computer/console games such as Portal 2 [1]. While playing these games Simon would occasionally give the characters unique voices, with a narrative thread roughly maintained throughout the video. The Simon's Songs series of videos is a collection of brief musical interludes wherein Simon does his best vocal impersonation of a cat being used to clean a rug. These videos demonstrate Simon's mind at work, as he eventually arrives at the perfect understanding of the two key critical lyrical elements that have defined success for one of his favourite musical artists, Parry Grip. This culminates in what is bound to be one of the top music videos of 2011, Elephant Having A Wank. The actual category the video will fall into--best or worst of 2011--is still in doubt.

Simon took a hiatus from the Yogscast in March 2015, with a video explaining his sudden absence. In the video, he relates his hiatus to unspecified medical issues tied into an unexpected visit to the hospital. Although he was released from the hospital a few weeks later, it was claimed that he wanted to take some time off in order to recover before returning to actively working on video content. A further passing mention in a Yogscast vlog in June simply said that he was getting better and that his friends hoped he would be fully recovered soon. Simon returned to making YouTube videos on September 25, making his first appearance in 6 months in the first episode of Trials of Skobbels [2].

Despite returning to several series on the main channel, he had a diminished involvement with Yogscast projects during his recuperation throughout 2016. He then went on another hiatus in March 2017, returning on the 9th of June on the stream. However, after his last hiatus, Simon has appeared way less frequently on the main channel (in which he used to appear in almost every single video). Since then, he has been showing up mainly in the Chilluminati streams, in the Game Goblin series (with Tom), and in some GTA V and Trouble in Terrorist Town (TTT) videos.

You are not permitted to enter quotes until the Wiki community agrees it is noteworthy. There's a limit of 20, with no more spaces left.

Title - Character - Year

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Simon Lane | Yogscast Wiki | FANDOM powered by Wikia

TRANSTOPIA YOUTH SUPPORT GROUP – The Gender Centre INC

Are You Transgender? ... Gender Questioning? ... Gender Queer?

"Transtopia" is a monthly group for transgender and gender questioning youth between the ages of 14 to 19. The group meets on a Wednesday night once a month and provides a safe, supporting space foryoung people to connect and be themselves.The group is an open group, and bookings are NOT required

How Much:FREEDo I Need To Book: No(call or email Viola groups@gendercentre.org.au on (02) 9519 7599) for more information

Please be advised that transtopia is a group for young transgender, gender diverse and gender questioning youth only, family members and non-transgender freinds are not encouraged to attend .Transtopia is a monthly group held over 11 months for youth between the ages of 14 to 19 Transtopia aims to provide a safe space for young transpeople to connect with others, enjoy activities as well as talk about things impacting on their life in a safe and non- judgmental space

Who runs the group: It is run by Viola, one of the centres case worker

What age must I be? : The group is for ages 14 - 19, if you are under 16 we ask that you complete a consent form & email it to groups@gendercentre.org.au

What is the structure of this group? : This is a relaxed group with the prime objective of creating a safe space, friendships, information and fun workshops!

Do I HAVE to talk? : Nobody HAS to talk at group, everybody moves at their own pace and nobody will be put on the spot to talk.

Can I bring a friend or parent? : By all means if you have a friend who identifies as trans or gender questioning and is between the age of 14 and 19 we encourage you to bring them along. However for the safety of the group we do not allow parents or non-trans people to come along.

Can I wear my preferred clothing? : We encourage you to wear whatever makes you comfortable, remember this is a group with people going through very similar experiences.

Who can I contact if I have any questions? : You can email Viola on groups@gendercentre.org.au

Transtopia: A place to be yourself

Under 16 DOWNLOAD THE CONSENT FORM

DOWNLOAD YOUTH BOOKLET

We will be starting a new Transtopia youth group in Orange

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TRANSTOPIA YOUTH SUPPORT GROUP - The Gender Centre INC

Astro-Physics AP900 QMD Mount with Controller and Pier …

This gorgeous mount and pier is in really good condition for having been pre-owned! There are only two issues of which are cosmetic and not mechanical, therefor this AP900 mount with pier is fully operational. The images below show the discolorization of the pier, which could be painted making this issue very minor. The second issue is that there is some very small chipping of the paint that without taking a close look it cannot easily be seen. The spots of chipping paint are located on sharp edges and this mount has more obtuse angles than acute ones. Overall, This beast of a mount is in really good condition.The AP900 Quartz Micro Drive (QMD) predates the SMD version and current AP900GTO version mounts out today. This is a rock solid, high precision mount. The hand controller has the N,S,E,W buttons as well as PEC memory, backlash control, Sol, Lunar, King tracking rates and a brightness knob. Guide rates are 8x and 16x. The QMD mounts deliver great performance at a lower cost than other mounts like it. They are hard to find and sell quickly when found. Dovetail & rings are not included.

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Astro-Physics AP900 QMD Mount with Controller and Pier ...

Company Seven | Astro-Physics Tripods, Portable Piers

ASTRO-PHYSICS ADJUSTABLE HEIGHT WOOD FIELD TRIPOD, AND PORTABLE PIERS FOR MODEL400, 600, 800, 900, AND 1200 SERIES GERMAN EQUATORIAL MOUNTS

Astro-Physics German equatorial mounts employ either a portable tripod, or a portable or a fixed pier as a support stand. Theassembled portable piers are under stress to provide excellent rigidity. The portable piers are also a good choice for travelby air or cargo as they are very resistant to impact damage. Neither of these choices of stand requires any tools for assemblyin the field, although to install a Model 900 or 1200 head requires an Allen wrench that is provided with the mount head.

It is possible to have a metal pier fabricated locally, and then install it (into a foundation below the regional frost line)at a convenient observing location. Utilities for power and signal can be installed below ground and up through the pier.Those persons interested in such an effort should contact us for specific advice.

The selection of a field tripod or a portable pier will to some degree be a matter of personal preference. For those personswho intend to do astrophotography (film or CCD), or for those where economy and durability are a concern then we do suggest aportable or permanent pier. For those where the convenience of height adjustment, quicker set up and disassembly, oraesthetics are a concern then the wood or aluminum tripods may be a good choice.

Portable Piers:

These piersfeature a unique tension design that combines rugged construction with light weight, while also eliminating flexure andannoying vibrations. Legs and tension rods attach without the need for any tools thereby permitting assembly in a matter of afew minutes. The stainless steel tension rods do not interfere when the telescope is pointed at zenith as the rods are locateda reasonable distance below the mount head. Turnbuckles are used to adjust tension on the rods; these also allow limitedultra-fine adjustments when polar aligning. The tension system is the simple technology that results in the firm base ofsupport provided by the portable pier. The center post is constructed of aluminum tubing, the base and legs are of steel. Theconstruction materials and finish provide great resistance to the environmental elements.

Piers have no provisions for leveling nor is it necessary; the mount heads have adjustments to make polar alignment even onuneven terrain. For reasons of stability it is desirable to locate a pier (or a tripod) on as firm and level ground as ispossible. Sand bags may be installed within and or inside the piers to add rigidity and dampening in wind prone environments.

Astro-Physics Adjustable Height Wood Field Tripod (AWT000):

This tripod can easily be set up level with out the use of any tools. While this not necessary since the mount heads haveadjustment devices to polar align even on uneven terrain, leveling the tripod can minimize adjustment in elevation of themount head. For reasons of stability it is desirable to locate a tripod (or a pier) on as firm and level ground as ispossible. Sand bags may be installed at the feet of the tripod to add rigidity and dampening in wind prone environments.

Support Bar and Accessory Tray for Astro-Physics Piers:

For those who wish a convenient location for the placement of small accessories, Astro-Physics has produced a support bar andaccessory tray. In addition to serving as a storage shelf, when used as a pair the top tray will keep dew from forming onaccessories placed onto a lower accessory tray.

A Support Bar (TRAYSB) is attached to one of the holes at the top of a pier post. Each support bar can accept up to twoaccessory trays. Each accessory tray spans 120 degrees (1/3) of the pier so that you can construct a complete 360 degreecircular tray around the pier post with just three support bars and three trays. These trays slip into the support bars. Theavailable trays are:

It is possible to buy Astro-Physics support bar and accessory tray systems for installation onto any portable or permanentpier that complies with the Astro-Physics specifications for pier diameter and hole pattern.

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Company Seven | Astro-Physics Tripods, Portable Piers

ASTRO PHYSICS AP400 GTO WITH WOODEN TRIPOD – CN …

https://optcorp.com/...w-wooden-tripod

USED ASTRO PHYSICS AP400 GO TO MOUNT W/WOODEN TRIPODThe two most important considerations in mount design and construction are maximum strength/rigidity for a given size and accuracy of the drive system. Without this basic foundation, all other features of a mount are just superfluous frills. The Astro-Physics 400GTO was engineered to be a compact, firm platform for your high-resolution instrument. Whether your interests are purely visual or include astro-photography, a steady image in the eyepiece or camera viewfinder is extremely important.The 400GTO is constructed of the highest quality components to provide you with years of observing pleasure. All parts are precisely machined on our computerized CNC lathe and machining center using solid or thick-wall aluminum and stainless steel. Machining tolerances are very high to achieve a tight, solid fit of all components. These are not thin-wall, weak, porous die castings as in most other mounts of comparable size. We avoid the use of any carbon steel shafts or plated steel fasteners because they will deteriorate with time. This mount will not rust or bind up and will retain its appearance and function throughout the years.Both axes respond to fingertip pressure with unparalleled smoothness. Built-in clutches can be disengaged for smooth sweeping or locked for astrophotography. The worm gears, motors and drive components are enclosed to protect them from dirt and dust. With the 105 Traveler, the 400 mount damps out in one second when mounted on the lightweight aluminum tripod.Your 400GTO mount can grow with your skills and interests in astronomy. You can enjoy the visual pursuits using the go-to Keypad controller and/or DigitalSky Voice software to help you find many fascinating objects. If you plan to take astro-photos, you will be pleased with the solid stability and inherent accurate tracking capability of the drive system. The GTO Control Box contains a plug-in for the CCD auto-guiding and imaging systems. These units will allow you to auto-guide astronomical photos and explore CCD imaging.FeaturesPrecision machined aluminum with radiused edgesGears and motors are fully enclosedGear in declination axis allows full 360 degree continuous rotation; scope can move through the zenith for photography2.5" (6.4cm) hollow right-ascension and declination shafts maximize strength at minimum weightLarge thrust bearings form highly-stable thrust surfaces for tremendous rigidity in a small packageRemovable stainless steel counterweight shaft for compact storageEngraved setting circles with Porter Slip Ring designFine altitude and azimuth adjustments for quickly and accurately zeroing in on the pole in the fieldBlack anodized finish will retain its lustrous beauty for yearsBase fits into 6" diameter pier with 0.083" wall thicknessSpecifications of the Equatorial Head

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ASTRO PHYSICS AP400 GTO WITH WOODEN TRIPOD - CN ...