Astronomy Picture of the Day

Astronomy Picture of the Day

Discover the cosmos!Each day a different image or photograph of our fascinating universe isfeatured, along with a brief explanation written by a professional astronomer.

2018 July 28

Explanation: Taken on the same night, from the same place, with the same telescopeand camera, these postcards from ourSolar System are shown atthe same scale to provide aninteresting comparison of apparent sizes.Spanning abouthalf a degree in planet Earth’s sky, the Moonis a stitched mosaic of six images.The others are the result of digitally stacked frames orsimple single exposures, with the realdistances tothe objects indicated along the bottom of each insert.Most of the Solar System’s planets with their brighter moons, and Plutowere captured during the telescopic expedition,but elusive Mercury was missed because of clouds near the horizon.The International Space Stationwas successfully hunted, though.The night was July 21st.Telescope and camera were located at theCentro Astronomico de TiedraObservatory in Spain.

Authors & editors: Robert Nemiroff(MTU) &Jerry Bonnell (UMCP)NASA Official: Phillip NewmanSpecific rights apply.NASA WebPrivacy Policy and Important NoticesA service of:ASD atNASA /GSFC& Michigan Tech. U.

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Astronomy Picture of the Day

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