The Sky over the Mornington Peninsula — September 2139
Highlights this month
- 6SunThe Moon passes Jupiter — 0.5° apart. (4:20am)
- 6SunThe Moon passes Saturn — 2° apart. (8:13pm)
- 23WedMercury at greatest evening elongation (26° from the Sun, mag 0.1) — best evening apparition. (1:19am)
- 23WedSpring equinox.
- 26SatThe Moon passes Mercury — 2° apart. (1:10am)
- 28MonJupiter is stationary — resumes direct (eastward) motion. (6:30pm)
Sun & twilight
| Date | Sunrise | Sunset | Day length | Astro. dark begins | ends |
|---|---|---|---|---|---|
| Tue 1 | 6:43am | 5:58pm | 11h 15m | 7:26pm | 5:15am |
| Thu 10 | 6:29am | 6:06pm | 11h 36m | 7:33pm | 5:02am |
| Sun 20 | 6:14am | 6:14pm | 12h 00m | 7:42pm | 4:46am |
| Wed 30 | 5:58am | 6:23pm | 12h 25m | 7:52pm | 4:29am |
Days lengthen by about 70 minutes over the month.
The Moon
- First QuarterWed 2, 3:25am
- Full Moon SupermoonWed 9, 2:31am
- Last QuarterTue 15, 5:11pm
- New MoonWed 23, 3:39pm
Perigee 9 Sep (357,600 km) · Apogee 24 Sep (406,200 km)
The planets
Rise/set for mid-month at The Briars.
| Planet | In | Mag | Rise | Transit | Set | Best |
|---|---|---|---|---|---|---|
| Mercury | Vir | 0.0 | 7:17am | 1:46pm | 8:17pm | Evening |
| Venus | Vir | −3.7 | 7:10am | 1:22pm | 7:34pm | Hidden |
| Mars | Cnc | 1.6 | 4:36am | 9:37am | 2:38pm | Hidden |
| Jupiter | Cap | −2.4 | 1:52pm | 9:02pm | 4:16am | Evening |
| Saturn | Cap | 0.3 | 2:40pm | 9:42pm | 4:48am | Evening |
| Uranus | Vir | 5.6 | 7:22am | 1:40pm | 7:58pm | Evening |
| Neptune | Oph | 7.9 | 10:07am | 5:17pm | 12:32am | Evening |
The solar system — September 2139
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 15 September 2026.