The Sky over the Mornington Peninsula — September 2117
Highlights this month
- 4SatSaturn is stationary — begins retrograde (westward) motion. (9:08am)
- 13MonThe Moon passes Jupiter — 2° apart. (8:15am)
- 16ThuMercury in superior conjunction with the Sun — lost in the glare. (7:36am)
- 23ThuSpring equinox.
- 29WedThe Moon passes Venus — 0.5° apart. (6:26pm)
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 | 5:57am | 6:23pm | 12h 26m | 7:53pm | 4:28am |
Days lengthen by about 70 minutes over the month.
The Moon
- First QuarterFri 3, 5:34pm
- Full MoonSat 11, 10:47am
- Last QuarterSun 19, 2:41pm
- New MoonSun 26, 10:53am
Apogee 13 Sep (406,200 km) · Perigee 26 Sep (356,800 km)
The planets
Rise/set for mid-month at The Briars.
| Planet | In | Mag | Rise | Transit | Set | Best |
|---|---|---|---|---|---|---|
| Mercury | Leo | −1.7 | 6:28am | 12:16pm | 6:04pm | Hidden |
| Venus | Lib | −4.2 | 8:08am | 3:04pm | 10:00pm | Evening |
| Mars | Vir | 1.8 | 7:04am | 1:16pm | 7:27pm | Hidden |
| Jupiter | Psc | −2.7 | 7:30pm | 1:27am | 7:21am | Morning |
| Saturn | Ari | −0.1 | 10:50pm | 4:05am | 9:16am | Morning |
| Uranus | Gem | 5.7 | 2:32am | 7:15am | 11:57am | Morning |
| Neptune | Vir | 8.0 | 7:46am | 2:11pm | 8:37pm | Evening |
The solar system — September 2117
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 8 September 2026.