| 3 January | Earth at perihelion |
| 4 January | Quadrantid meteor shower peaks |
| 8 January, 11:37 | New moon |
| 22 January | Mercury in greatest eastern elongation (19°) |
| 22 January, 13:35 | Full moon |
| 27 January | Mercury at perihelion |
| 3 January | Earth at perihelion |
| 4 January | Quadrantid meteor shower peaks |
| 8 January, 11:37 | New moon |
| 22 January | Mercury in greatest eastern elongation (19°) |
| 22 January, 13:35 | Full moon |
| 27 January | Mercury at perihelion |