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A table listing some of the Astronomical Phenomena for December 2016:

Phenomena December

1Moon passes 7 degrees north of Mercury mag -0.5 (4 UT)
3Moon passes 6 degrees north of Venus mag -4.2 (13 UT)
5Moon passes 3 degrees north of Mars mag +0.7 (11 UT)
6Moon passes 0.7 degrees north of Neptune mag +7.9, occultation is visible from USA, western Europe (22:04 UT)
7First quarter Moon (9:04 UT)
9Moon passes 3 degrees south of Uranus mag +5.8 (20 UT)
10Saturn is in conjunction with the Sun (12 UT)
11Mercury mag -0.5 is at greatest elongation east 20.8 degrees (5 UT)
12Moon is at perigee 358,462 km or 222,738 miles from Earth (23:36 UT)
13Moon passes 0.5 degrees north of Aldebaran mag +0.9, occultation is visible from USA, western Europe (4:37 UT)
14Full Moon (0:06 UT)
14Geminids meteor shower peaks (ZHR = 120)
16Moon passes 10 degrees south of Pollux mag +1.1 (5 UT)
18Moon passes 1 degree south of Regulus mag +1.4, occultation is visible from southernmost Australia (18:39 UT)
19Mercury is stationary in Sagittarius, afterwards begins retrograde motion (7 UT)
21Last quarter Moon (1:56 UT)
21Winter Solstice NH - Summer Solstice SH (11 UT)
22Moon passes 2 degrees north of Jupiter mag -1.9 (17 UT)
22Moon passes 6 degrees north of Spica mag +1.0 (22 UT)
22Ursids meteor shower peaks (ZHR = 10 - occasionally up to 50)
25Moon is at apogee 405,868 km or 252,195 miles from Earth (6:03 UT)
25Mercury is at perihelion 0.308 AU (approx. 46.1 million kms or 28.6 million miles) from the Sun (15 UT)
26Moon passes 10 degrees north of Antares mag +1.0 (20 UT)
27Moon passes 4 degrees north of Saturn mag +0.5 (21 UT)
28Mercury is at inferior conjunction (17 UT)
29New Moon (6:54 UT)
29Uranus mag +5.8 is stationary in Pisces, afterwards resumes direct motion (15 UT)