| 1 January | Beginning of International Year of Astronomy |
| 3 January | Quadrantids peak |
| 4 January, 14:00 | Mercury at maximum eastern elongation |
| 4 January, 14:00 | Earth at perihelion |
| 10 January, 11:00 | Moon at perigee |
| 11 January, 03:28 | Full moon |
| 14 January, 23:00 | Venus at maximum eastern elongation |
| 20 January, 16:00 | Mercury at inferior conjunction |
| 23 January, 00:00 | Moon at apogee |
| 24 January, 07:00 | Jupiter at conjunction |
| 25 January, 04:00 | Moon occults Mars |
| 26 January, 07:57 | New moon, annular solar eclipse |
