Portal:Astronomy/Events/January 2010
| 1 January, 21:00 | Moon at perigee |
| 2 January, 21:00 | Earth at perihelion |
| 3 January | Quadrantids peak |
| 4 January, 19:00 | Mercury at inferior conjunction |
| 11 January, 21:00 | Venus at superior conjunction |
| 15 January, 07:07 | New moon and annular solar eclipse |
| 17 January, 02:00 | Moon at apogee |
| 27 January, 05:00 | Mercury at greatest western elongation |
| 29 January, 19:00 | Mars at opposition |
| 30 January, 06:19 | Full moon |
| 30 January, 09:00 | Moon at perigee |