| 3 January, 04:13 | Moon occults Neptune |
| 3 January, 06:46 | Moon occults Mars |
| 3 January, 14:00 | Quadrantids peak |
| 4 January, 14:17 | Earth at perihelion |
| 6 January | Comet 45P/Honda–Mrkos–Pajdušáková at max brightness |
| 7 January | Pluto at conjunction |
| 10 January, 06:09 | Moon at perigee |
| 12 January, 11:34 | Full moon |
| 12 January, 13:18 | Venus at greatest eastern elongation |
| 19 January, 09:42 | Mercury at greatest western elongation |
| 22 January, 00:17 | Moon at apogee |
| 28 January, 00:07 | New moon |
| 30 January, 11:25 | Moon occults Neptune |