The Sky over the Mornington Peninsula — September 2179
Highlights this month
- 1WedNeptune at opposition — closest and brightest of the year, up all night in Aquarius (mag 7.8). (6:40pm)
- 3FriThe Moon passes Mercury — 3° apart. (7:30pm)
- 13MonMercury at greatest evening elongation (27° from the Sun, mag 0.2) — best evening apparition. (1:15pm)
- 23ThuSpring equinox.
- 24FriMercury and Venus in conjunction — 4° apart. (6:49pm)
- 25SatThe Moon passes Saturn — 3° apart. (2:26am)
- 26SunMercury is stationary — begins retrograde (westward) motion. (2:53pm)
- 28TueUranus at opposition — closest and brightest of the year, up all night in Pisces (mag 5.8). (10:16am)
Sun & twilight
| Date | Sunrise | Sunset | Day length | Astro. dark begins | ends |
|---|---|---|---|---|---|
| Wed 1 | 6:43am | 5:58pm | 11h 16m | 7:26pm | 5:15am |
| Fri 10 | 6:29am | 6:06pm | 11h 37m | 7:34pm | 5:01am |
| Mon 20 | 6:13am | 6:14pm | 12h 01m | 7:43pm | 4:45am |
| Thu 30 | 5:58am | 6:23pm | 12h 26m | 7:53pm | 4:28am |
Days lengthen by about 70 minutes over the month.
The Moon
- New MoonThu 2, 1:34am
- First QuarterWed 8, 4:09pm
- Full MoonThu 16, 10:04am
- Last QuarterFri 24, 1:53pm
Perigee 3 Sep (359,200 km) · Apogee 18 Sep (406,200 km)
The planets
Rise/set for mid-month at The Briars.
| Planet | In | Mag | Rise | Transit | Set | Best |
|---|---|---|---|---|---|---|
| Mercury | Vir | 0.2 | 7:15am | 1:49pm | 8:25pm | Evening |
| Venus | Vir | −3.7 | 7:16am | 1:33pm | 7:49pm | Hidden |
| Mars | Vir | 1.8 | 6:50am | 12:52pm | 6:55pm | Hidden |
| Jupiter | Gem | −1.9 | 3:07am | 7:54am | 12:41pm | Morning |
| Saturn | Gem | −0.0 | 2:20am | 7:07am | 11:54am | Morning |
| Uranus | Psc | 5.8 | 7:05pm | 1:07am | 7:04am | Morning |
| Neptune | Aqr | 7.8 | 4:53pm | 11:24pm | 5:59am | All night |
The solar system — September 2179
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 10 October 2026.