Mercury transit 2019: Where, when and how to see a rare astronomical event Monday (even if its cloudy) –

Dont look now, but something special is going to happen in the sky on Monday, Nov. 11.

The transit of Mercury is a rare astronomical event where, from Earths point of view, the solar systems innermost planet crosses the face of the sun. This solar sprint will take about 5.5 hours and wont happen again for decades.

The 2019 Mercury transit will be visible in its entirety to the entire East Coast weather permitting, of course starting at 7:25 a.m. and will end just after 1 p.m. Eastern time. Areas farther west will see the transit already in progress as the sun rises.

The last Mercury transit was in 2016. It wont happen again until 2032. The next one visible in the U.S. will be in 2049.

Martin Bernetti/AFP/Getty Images

A woman looks through a specially filtered telescope during the 2006 Mercury transit.

The transit of Mercury isnt like a solar eclipse. There wont be a noticeable dimming of the sun which, by the way, you should never, ever look directly at without protection.

As Mercury transits the sun, the planet will appear as a very tiny dot against the huge disk of our star, so watching it will require a telescope or binoculars and special solar filters.

Thats not something most people have in their garage, so you might consider checking out local astronomy groups in your area. For example, the Lehigh Valley Amateur Astronomical Society is planning a watch event at Da Vinci Science Center in Allentown, and the United Astronomy Clubs of New Jersey will have a program at its facility in Jenny Jump State Forest.


The Mercury transit 2019 forecast by AccuWeather shows poor viewing conditions for much of the eastern U.S.

But the viewing obviously depends on clouds. Unfortunately, Lehigh Valley weather forecasts are calling for overcast skies. The outlook can change, of course, and maybe it will be possible to see the Mercury transit through some breaks in the clouds.

Just in case, a Mercury transit live stream will be available on and on the channel of the Griffith Observatory in southern California.

Steve Novak may be reached at Follow him on Twitter @SteveNovakLVL and Facebook. Find on Facebook.

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Mercury transit 2019: Where, when and how to see a rare astronomical event Monday (even if its cloudy) -

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