Portal:Astronomy/Events/September 2019
| 2 September, 10:42 | Mars at conjunction |
| 4 September, 01:42 | Mercury at superior conjunction |
| 8 September, 13:42 | Moon occults Saturn |
| 9 September, 03:05 | Moon occults Pluto |
| 10 September | Neptune at opposition |
| 13 September, 13:16 | Moon at apogee |
| 14 September, 04:33 | Full moon |
| 23 September, 07:50 | Earth southward equinox |
| 28 September, 02:17 | Moon at perigee |
| 28 September, 18:26 | New moon |