Portal:Astronomy/Events/December 2012
| 3 December, 01:45 | Jupiter at opposition | 
| 4 December, 22:48 | Mercury at greatest western elongation | 
| 12 December, 23:07 | Moon at perigee | 
| 13 December, 08:42 | New moon | 
| 13 December, 21:00 | Geminids peak | 
| 18 December, 18:42 | Ceres at opposition | 
| 21 December, 11:12 | Earth southern solstice | 
| 22 December, 15:00 | Ursids peak | 
| 25 December, 21:06 | Moon at apogee | 
| 26 December, 00:10 | Moon occults Jupiter | 
| 28 December, 10:21 | Full moon | 
| 28 December, 23:48 | Comet C/2012 K5 (LINEAR) at max brightness | 
| 30 December | Pluto at conjunction |