December 2025 Sky

  • Posted by OCastronomy
  • On December 6, 2025
  • 0 Comments
  • Antares, Beehive cluster M44, Castor, December solstice, Geminid Meteor Shower, Jupiter, M35, Mercury, Pleiades, Pollux, Regulus, Saturn, Spica, Uranus

December 2025 Sky

4 Moon, Uranus and the Pleiades within 5.0° circle at 1h UT (evening sky). Mag. 5.6. Near Full Moon.
4 Moon near the Pleiades at 4h UT (evening sky).
4 Moon at perigee (closest to Earth) at 11:11 UT (distance 356,963km; angular size 33.5′).
4 Full Moon at 23:14 UT. Supermoon.
• Supermoon (Wikipedia)
6 Moon near M35 Cluster at 7h UT (morning sky).
7 Moon near Castor at 11h UT (morning sky).
7 Moon near Pollux at 17h UT (morning sky).
7 Moon near Jupiter at 18h UT (morning sky). Mag. −2.6.
7 Mercury at westernmost elongation at 21h UT (21° from Sun, morning sky). Mag. −0.4.
8 Moon near Beehive Cluster (M44) at 17h UT (morning sky).
10 Moon near Regulus at 9h UT (morning sky).
11 Last Quarter Moon at 20:52 UT.
14 Geminid Meteor Shower peaks in a broad maximum centred at 8h UT over 10−12 hours. Active December 4−17. Produces bright, medium-speed meteors (100+ meteors/hour) at its peak. The best and most reliable of the major annual showers.
• Geminids (Wikipedia)
• Geminids (American Meteor Society)
• 2025 Meteor Shower Calendar (PDF) (International Meteor Organization)
14 Moon near Spica at 17h UT (morning sky).
17 Moon at apogee (farthest from Earth) at 6h UT (distance 406,322km; angular size 29.4′).
18 Moon near Mercury at 11h UT (18° from Sun, morning sky). Mag. −0.5.
18 Moon near Antares at 14h UT (17° from Sun, morning sky).
19 Mercury 5.5° NNE of Antares at 21h UT (18° from Sun, morning sky). Mags. −0.5 and 1.0.
20 New Moon at 1:43 UT. Start of lunation 1274.
21 December solstice at 15:01 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)
27 Moon near Saturn at 1h UT (evening sky). Mag. 1.2.
27 First Quarter Moon at 19:10 UT.
31 Moon, Uranus and the Pleiades within 5.2° circle at 11h UT (evening sky). Mag. 5.6.
December 2025 Sky All times Universal Time (UT).

  • US Eastern Standard Time = UT − 5 hours.
  • US Pacific Standard Time = UT − 8 hours.
  • Australian Eastern Daylight Time = UT + 11 hours
  • Singapore Standard Time = UT + 8 hours.