The Sky over the Mornington Peninsula — September 2122
Highlights this month
- 1TueMercury in inferior conjunction with the Sun — lost in the glare. (5:20pm)
- 3ThuVenus is stationary — begins retrograde (westward) motion. (10:01am)
- 4FriThe Moon passes Venus — 2° apart. (1:19am)
- 5SatJupiter in superior conjunction with the Sun — lost in the glare. (5:20am)
- 10ThuMars and Saturn in conjunction — 0.9° apart. (1:14am)
- 10ThuMercury is stationary — resumes direct (eastward) motion. (9:58am)
- 18FriMercury at greatest morning elongation (18° from the Sun, mag −0.4) — best morning apparition. (2:41am)
- 23WedSpring equinox.
- 25FriThe Moon passes Saturn — 2° apart. (3:47pm)
- 26SatThe Moon passes Mars — 4° apart. (7:36am)
- 26SatVenus in inferior conjunction with the Sun — lost in the glare. (12:35pm)
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 01m | 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
- New MoonTue 1, 10:23am
- First QuarterWed 9, 1:36pm
- Full MoonWed 16, 6:58pm
- Last QuarterWed 23, 9:29am
Apogee 6 Sep (405,500 km) · Perigee 18 Sep (360,500 km)
The planets
Rise/set for mid-month at The Briars.
| Planet | In | Mag | Rise | Transit | Set | Best |
|---|---|---|---|---|---|---|
| Mercury | Leo | 0.0 | 5:39am | 11:10am | 4:42pm | Hidden |
| Venus | Vir | −4.1 | 6:26am | 1:03pm | 7:40pm | Hidden |
| Mars | Cnc | 1.5 | 4:09am | 9:03am | 1:56pm | Morning |
| Jupiter | Leo | −1.5 | 6:09am | 11:48am | 5:28pm | Hidden |
| Saturn | Cnc | 0.1 | 3:55am | 8:50am | 1:45pm | Morning |
| Uranus | Cnc | 5.6 | 3:57am | 8:49am | 1:42pm | Morning |
| Neptune | Vir | 8.0 | 8:14am | 2:52pm | 9:29pm | Evening |
The solar system — September 2122
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 9 September 2026.