Portal:Astronomy/Events/January 2023
| 1 January, 22:16 | Moon occults Uranus |
| 3 January, 19:37 | Moon occults Mars |
| 4 January, 03:06 | Quadrantids peak |
| 4 January, 19:59 | Earth at perihelion |
| 6 January, 23:08 | Full moon |
| 7 January, 12:53 | Mercury at inferior conjunction |
| 8 January, 09:19 | Moon at apogee |
| 21 January, 20:53 | New moon |
| 21 January, 20:58 | Moon at perigee |
| 29 January, 04:09 | Moon occults Uranus |
| 30 January, 05:59 | Mercury at greatest western elongation |
| 31 January, 04:25 | Moon occults Mars |