The Sky over the Mornington Peninsula — September 2146
Highlights this month
- 4SunMars is stationary — begins retrograde (westward) motion. (6:31pm)
- 6TueNeptune is stationary — resumes direct (eastward) motion. (11:54am)
- 8ThuThe Moon passes Mercury — 4° apart. (9:17pm)
- 13TueJupiter in superior conjunction with the Sun — lost in the glare. (11:19pm)
- 15ThuMercury at greatest evening elongation (27° from the Sun, mag 0.1) — best evening apparition. (7:25am)
- 19MonVenus in inferior conjunction with the Sun — lost in the glare. (8:35am)
- 22ThuThe Moon passes Mars — 2° apart. (6:44am)
- 23FriSpring equinox.
- 24SatThe Moon passes Saturn — 2° apart. (6:23am)
- 28WedMercury is stationary — begins retrograde (westward) motion. (8:12am)
Sun & twilight
| Date | Sunrise | Sunset | Day length | Astro. dark begins | ends |
|---|---|---|---|---|---|
| Thu 1 | 6:43am | 5:58pm | 11h 16m | 7:26pm | 5:15am |
| Sat 10 | 6:29am | 6:06pm | 11h 37m | 7:34pm | 5:01am |
| Tue 20 | 6:13am | 6:14pm | 12h 01m | 7:43pm | 4:45am |
| Fri 30 | 5:58am | 6:23pm | 12h 26m | 7:53pm | 4:28am |
Days lengthen by about 70 minutes over the month.
The Moon
- New MoonTue 6, 4:37pm
- First QuarterWed 14, 1:12am
- Full MoonTue 20, 6:00pm
- Last QuarterWed 28, 6:28am
Apogee 1 Sep (405,500 km) · Perigee 17 Sep (365,600 km) · Apogee 29 Sep (404,900 km)
The planets
Rise/set for mid-month at The Briars.
| Planet | In | Mag | Rise | Transit | Set | Best |
|---|---|---|---|---|---|---|
| Mercury | Vir | 0.1 | 7:16am | 1:50pm | 8:24pm | Evening |
| Venus | Vir | −3.7 | 5:59am | 12:24pm | 6:48pm | Hidden |
| Mars | Psc | −2.4 | 8:10pm | 2:06am | 7:57am | Morning |
| Jupiter | Leo | −1.5 | 6:25am | 12:13pm | 6:01pm | Hidden |
| Saturn | Ari | −0.0 | 10:20pm | 3:41am | 8:57am | Morning |
| Uranus | Lib | 5.6 | 8:42am | 3:37pm | 10:32pm | Evening |
| Neptune | Oph | 7.9 | 11:04am | 6:21pm | 1:41am | Evening |
The solar system — September 2146
Evening sky Morning sky Up much of the night Lost in the Sun’s glare
Open the full interactive orrery ↗ — fast-forward, pick any date, toggle the Moon and more.
Looking for an earlier month? Browse all past monthly guides →
Generated automatically from the MPAS sky engine on 18 September 2026.