The Sky over the Mornington Peninsula — September 2181
Highlights this month
- 4TueMercury in inferior conjunction with the Sun — lost in the glare. (9:57pm)
- 5WedNeptune at opposition — closest and brightest of the year, up all night in Aquarius (mag 7.8). (8:50pm)
- 11TueThe Moon passes Mars — 4° apart. (6:37pm)
- 12WedVenus at greatest evening elongation (46° from the Sun, mag −4.4) — best evening apparition. (12:07pm)
- 13ThuMercury is stationary — resumes direct (eastward) motion. (12:43pm)
- 21FriMercury at greatest morning elongation (18° from the Sun, mag −0.4) — best morning apparition. (3:52am)
- 22SatSpring equinox.
Sun & twilight
| Date | Sunrise | Sunset | Day length | Astro. dark begins | ends |
|---|---|---|---|---|---|
| Sat 1 | 6:42am | 5:59pm | 11h 17m | 7:26pm | 5:14am |
| Mon 10 | 6:28am | 6:06pm | 11h 38m | 7:34pm | 5:01am |
| Thu 20 | 6:12am | 6:15pm | 12h 02m | 7:43pm | 4:44am |
| Sun 30 | 5:57am | 6:24pm | 12h 27m | 7:53pm | 4:27am |
Days lengthen by about 70 minutes over the month.
The Moon
- Last QuarterSat 1, 11:01am
- New MoonSun 9, 11:35am
- First QuarterSun 16, 2:46pm
- Full MoonSun 23, 10:27am
Apogee 3 Sep (405,000 km) · Perigee 18 Sep (369,100 km)
The planets
Rise/set for mid-month at The Briars.
| Planet | In | Mag | Rise | Transit | Set | Best |
|---|---|---|---|---|---|---|
| Mercury | Leo | 0.8 | 5:39am | 11:16am | 4:52pm | Hidden |
| Venus | Lib | −4.4 | 8:04am | 3:04pm | 10:04pm | Evening |
| Mars | Vir | 1.7 | 7:17am | 1:36pm | 7:55pm | Hidden |
| Jupiter | Leo | −1.5 | 5:49am | 11:21am | 4:53pm | Hidden |
| Saturn | Cnc | 0.1 | 4:00am | 8:56am | 1:52pm | Morning |
| Uranus | Psc | 5.8 | 7:44pm | 1:35am | 7:22am | Morning |
| Neptune | Aqr | 7.8 | 5:14pm | 11:39pm | 6:09am | All night |
The solar system — September 2181
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.
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Generated automatically from the MPAS sky engine on 11 October 2026.