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    Articles > December 2015
 
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PLANISPHERES

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.


The Night Sky Planisphere

A very popular 8-inch diameter, two-sided planisphere (plastic) designed to depict the night sky with less distortion than regular planispheres. Available for several latitudes, and in a smaller 5-inch edition.
More info | Buy now
• Only $11.95 •

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Night Sky Editions
Latitude 20° to 30° North
Latitude 30° to 40° North
Latitude 40° to 50° North
Latitude 50° to 60° North
Southern Hemisphere
(more info)



Guide to the Stars

(5th Edition, Jan. 2013)
A very large 16-inch diameter information-rich planisphere (plastic) for use anywhere between latitude 30° & 60° North. Also available in a Southern Hemisphere edition.
More info | Buy now
• Save 10-20% •

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  Sky Calendar -- December 2015
2 Moon near Regulus (100° from Sun, morning sky) at 11h UT.
3 Last Quarter Moon at 7:40 UT.
4 Moon near Jupiter (morning sky) at 4h UT. Mag. -2.0.
5 Moon at apogee (farthest from Earth) at 15h UT (distance 404,800 km; angular size 29.5').
6 Moon very near Mars (60° from Sun, morning sky) at 0h UT. Mag. +1.5. Occultation visible from west central Africa.
Occultation of Mars (IOTA)
6 Moon near Spica (50° from Sun, morning sky) at 23h UT.
7 Moon very near Venus (42° from Sun, morning sky) at 15h UT. Mag. -4.2. Occultation visible from Alaska.
Occultation of Venus (IOTA)
Crescent Moon and Venus (APOD)
11 New Moon at 10:29 UT. Start of lunation 1150.
Lunation Number (Wikipedia)
14 Geminid Meteor Shower peaks at 18h UT. Major activity lasts almost 24 hours around peak time. Produces bright, medium-speed meteors at its peak (up to 80 meteors/hour). Most reliable meteor shower. Easy to observe (radiant shown on sky map). Best seen after midnight.
Observing the Geminids (Gary Kronk)
Meteor Shower Calendar (IMO)
18 First Quarter Moon at 15:14 UT.
21 Moon at perigee (closest to Earth) at 9h UT (368,417 km; angular size 32.4').
22 December solstice at 4:48 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)
23 Moon near the Pleiades (evening sky) at 2h UT.
The Pleiades (Wikipedia)
23 Moon very near Aldebaran (evening sky) at 18h UT. Occultation visible from Europe and north Asia.
Occultation of Aldebaran (IOTA)
23 Mars 3.5° NNE of Spica (68° from Sun, morning sky) at 23h UT. Mags. +1.4 and +1.0.
25 Full Moon at 11:11 UT.
Full Moon Names (Wikipedia)
28 Moon near Beehive cluster (morning sky) at 1h UT.
Beehive Cluster (Wikipedia)
M44: The Beehive Cluster (APOD)
29 Mercury at greatest elongation east (20° from Sun, evening sky) at 3h UT. Mag. -0.5.
29 Moon near Regulus (127° from Sun, morning sky) at 21h UT.
31 Moon near Jupiter (106° from Sun, morning sky) at 19h UT. Mag. -2.2.
All times Universal Time (UT). USA Eastern Standard Time = UT - 5 hours.

Clear skies till next month!

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