Portal:Outer space/Astronomical events
| 1 December, 06:21 | New moon |
| 6 December, 02:11 | Mercury at inferior conjunction |
| 7 December, 20:19 | Jupiter at opposition |
| 8 December, 08:56 | Moon occults Saturn |
| 9 December, 09:19 | Moon occults Neptune |
| 12 December, 13:18 | Moon at perigee |
| 14 December, 01:12 | Geminids peak |
| 15 December, 09:02 | Full moon |
| 18 December, 08:49 | Moon occults Mars |
| 21 December, 09:20 | Earth southern solstice |
| 22 December, 10:00 | Ursids peak |
| 24 December, 07:25 | Moon at apogee |
| 25 December, 01:59 | Mercury at greatest western elongation |
| 30 December, 22:27 | New moon |
