Today’s Astronomical Events – December 8th, 2014

2014-12-08

Unusually, Mercury reaches its maximum magnitude, superior conjunction, its furthest distance from both the Sun (aphelion) and the Earth (apogee), all on the same day.

(Click on an image to enlarge.)

Images Courtesy of Mobile Observatory.

 

 

00:34 UT – Mercury reaches its maximum magnitude -1.2. (100% illuminated, apparent diameter 4.6”. Ophiuchus, not visible.)

05:45 UT – Mercury is at apogee, its furthest point from the Earth. Distance to Earth: 1.451 AU. (100% illuminated, magnitude -1.2, apparent diameter 4.6”. Ophiuchus, not visible.)

09:34 UT – Mercury is at superior conjunction with the Sun, on the opposite side from the Earth. (100% illuminated, magnitude -1.2, apparent diameter 4.6”. Ophiuchus, not visible.)

20:55 UT – Mercury is at aphelion, its furthest point from the Sun. Distance to Sun: 0.467 AU. (100% illuminated, magnitude -1.2, apparent diameter 4.6”. Ophiuchus, not visible.)

 

 

Events in bold involve objects and/or events that are easily visible with the naked eye.

All times are in Universal Time (UTC). To convert the time to your timezone, click here.

 

Learn more about every upcoming astronomical event in 2015 An Astronomical Year (Kindle eBook) and The Astronomical Almanac (2015-2019) (Kindle eBook) and The Astronomical Almanac (2015-2019) (Paperback Edition).

The Amateur Astronomer’s Notebook allows astronomers to log 150 observing sessions and includes an appendix of hundreds of suggested deep sky objects.

Details of all available books across the world can be found here or by visiting the author’s page on Amazon.

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