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    Articles > December 2018
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Guide to the Night Sky
2019 Guide to the Night Sky

A monthly guide to the night sky in 2019 with star charts, sky calendar, planet data, moon phases, and meteor showers.
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All sky watchers need a planisphere to quickly show the location of stars and constellations for any date and time. Note: Planispheres are designed for specific latitudes so be sure to select one for your latitude.

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  Sky Calendar -- December 2018
3 Moon near Spica (morning sky) at 9h UT.
3 Moon near Venus (41° from Sun, morning sky) at 21h UT. Mag. −4.7.
Venus (Wikipedia)
5 Moon near Mercury (17° from Sun, morning sky) at 22h UT. Mag. 0.9.
7 New Moon at 7:21 UT. Start of lunation 1187.
Lunation Number (Wikipedia)
7 Mars 0.04° NNW of Neptune (88° from Sun, evening sky) at 14h UT. Mags. 0.1 and 7.9.
9 Moon near Saturn (evening sky) at 5h UT. Mag. 0.5.
Saturn (Wikipedia)
12 Moon at apogee (farthest from Earth) at 12h UT (distance 405,177 km; angular size 29.5').
14 Geminid Meteor Shower peaks at 12:30 UT. Produces bright, medium-speed meteors at its peak (up to 80 meteors/hour). Most reliable meteor shower. Easy to observe (radiant on sky map). Best after midnight.
Meteor Shower Calendar (IMO)
Geminids (NASA)
Geminids of the North (APOD)
15 Moon near Mars (evening sky) at 2h UT. Mag. 0.2.
Mars (Wikipedia)
15 Mercury at greatest elongation west (21° from Sun, morning sky) at 11h UT. Mag. −0.4.
15 First Quarter Moon at 11:48 UT.
20 Moon near the Pleiades (evening sky) at 16h UT.
The Pleiades (Wikipedia)
21 Moon near Aldebaran (evening sky) at 7h UT.
Aldebaran (Wikipedia)
21 Mercury 0.8° NNE of Jupiter (20° from Sun, morning sky) at 20h UT. Mags. −0.4 and −1.8.
21 December solstice at 22:25 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)
22 Full Moon at 17:49 UT.
Full Moon Names (Wikipedia)
23 Jupiter 5.2° N of Antares (22° from Sun, morning sky) at 20h UT. Mags. −1.8 and 1.0.
24 Moon near Castor (morning sky) at 3h UT.
24 Moon near Pollux (morning sky) at 7h UT.
24 Moon at perigee (closest to Earth) at 9:57 UT (361,062 km; angular size 33.1').
25 Moon near Beehive cluster M44 (morning sky) at 5h UT.
Beehive Cluster (Wikipedia)
M44: The Beehive Cluster (APOD)
26 Moon near Regulus (morning sky) at 18h UT.
Regulus (Wikipedia)
29 Last Quarter Moon at 9:36 UT.
30 Moon near Spica (morning sky) at 15h UT.
All times Universal Time (UT).
  • USA Eastern Standard Time = UT − 5 hours.
  • Australian Eastern Summer Time = UT + 11 hours
  • Singapore Standard Time = UT + 8 hours.

Clear skies till next month!

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