Portal:Astronomy/Events/September 2020
| 2 September, 05:22 | Full moon |
| 2 September, 06:24 | Mars southern solstice |
| 6 September, 04:46 | Moon occults Mars |
| 6 September, 06:21 | Moon at apogee |
| 11 September | Neptune at opposition |
| 17 September, 11:00 | New moon |
| 18 September, 13:41 | Moon at perigee |
| 22 September, 13:31 | Earth southward equinox |