The Sky over the Mornington Peninsula — September 2012
Highlights this month
- 8SatThe Moon passes Jupiter — 0.6° apart. (9:07pm)
- 10MonMercury in superior conjunction with the Sun — lost in the glare. (10:32pm)
- 13ThuThe Moon passes Venus — 4° apart. (1:00am)
- 18TueThe Moon passes Saturn — 5° apart. (10:11pm)
- 20ThuThe Moon passes Mars — 0.2° apart. (6:33am)
- 23SunSpring equinox.
- 29SatUranus at opposition — closest and brightest of the year, up all night in Pisces (mag 5.8). (5:23pm)
Sun & twilight
| Date | Sunrise | Sunset | Day length | Astro. dark begins | ends |
|---|---|---|---|---|---|
| Sat 1 | 6:42am | 5:58pm | 11h 16m | 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 | 6:23pm | 12h 27m | 7:53pm | 4:27am |
Days lengthen by about 70 minutes over the month.
The Moon
- Last QuarterSat 8, 11:18pm
- New MoonSun 16, 12:18pm
- First QuarterSun 23, 5:36am
- Full MoonSun 30, 1:17pm
Apogee 7 Sep (404,900 km) · Perigee 19 Sep (365,300 km)
The planets
Rise/set for mid-month at The Briars.
| Planet | In | Mag | Rise | Transit | Set | Best |
|---|---|---|---|---|---|---|
| Mercury | Vir | −1.4 | 6:37am | 12:32pm | 6:28pm | Hidden |
| Venus | Cnc | −4.1 | 4:21am | 9:28am | 2:35pm | Morning |
| Mars | Lib | 1.2 | 8:32am | 3:30pm | 10:29pm | Evening |
| Jupiter | Tau | −2.2 | 12:53am | 5:42am | 10:30am | Morning |
| Saturn | Vir | 0.6 | 7:59am | 2:28pm | 8:57pm | Evening |
| Uranus | Psc | 5.8 | 7:12pm | 1:11am | 7:06am | Morning |
| Neptune | Aqr | 7.8 | 4:15pm | 10:54pm | 5:37am | Evening |
The solar system — September 2012
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 15 July 2026.