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    Articles > December 2009
 
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  Sky Calendar -- December 2009
1 Moon near the Pleiades (midnight sky) at 15h UT.
2 Full Moon at 7:31 UT.
4 Moon at perigee (closest to Earth) at 14h UT (363,479 km; 32.9').
5 Moon near Pollux (morning sky) at 5h UT.
6 Moon near Beehive cluster (M44) (morning sky) at 5h UT.
6 Moon near Mars (morning sky) at 23h UT. Mag. -0.2.
7 Moon near Regulus (morning sky) at 19h UT.
9 Last Quarter Moon at 00:13 UT.
10 Moon near Saturn (morning sky) at 5h UT. Mag. +1.0.
11 Moon near Spica (morning sky) at 18h UT.
14 Geminid Meteor Shower peaks at 5h UT. Produces bright, medium-speed meteors at its peak (up to 80 meteors/hour). The parent body of the Geminids is a mysterious asteroid known as 3200 Phaethon believed to be an "extinct comet." Very favorable viewing conditions this year.
The Geminids (Gary Kronk)
Meteor Shower Calendar 2009 (IMO)
16 New Moon at 12:02 UT. Start of lunation 1076.
Lunation Number (Wikipedia)
18 Moon near Mercury (20° from Sun, evening sky) at 7h UT. Mag. -0.5.
18 Mercury at greatest elongation, 20° east from Sun (evening sky) at 17h UT. Mag. -0.5.
20 Moon at apogee (farthest from Earth) at 15h UT (distance 405,731 km; angular size 29.5').
21 Jupiter 0.53° SSE from Neptune at 10h UT (evening sky). Mags. -2.2 and +7.9.
21 Moon near Jupiter (evening sky) at 12h UT. Mag. -2.2.
21 December solstice at 17:47 UT. The time when the Sun reaches the point farthest south of the celestial equator marking the start of winter in the Northern Hemisphere and summer in the Southern Hemisphere.
December Solstice (Wikipedia)
24 First Quarter Moon at 17:36 UT.
29 Moon near the Pleiades (evening sky) at 1h UT.
31 Full Moon at 19:13 UT.
Blue Moon (Wikipedia)
31 Partial Eclipse of the Moon from 18:52 to 19:54 UT, mid-eclipse at 19:23 UT. Very slight eclipse visible from Europe, Africa and Asia.
Partial Lunar Eclipse of 2009 Dec 31 (PDF) (NASA)
Eclipses During 2009 (NASA)
All times Universal Time (UT). USA Eastern Standard Time = UT - 5 hours.

Clear skies till next month!

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