The Sky over the Mornington Peninsula — September 1973
Highlights this month
- 3MonMercury in superior conjunction with the Sun — lost in the glare. (6:10am)
- 9SunThe Moon passes Jupiter — 3° apart. (7:49am)
- 19WedMars is stationary — begins retrograde (westward) motion. (10:25pm)
- 20ThuThe Moon passes Saturn — 1° apart. (3:09pm)
- 23SunSpring equinox.
- 28FriJupiter is stationary — resumes direct (eastward) motion. (11:31pm)
- 30SunThe Moon passes Venus — 2° apart. (1:32pm)
Sun & twilight
| Date | Sunrise | Sunset | Day length | Astro. dark begins | ends |
|---|---|---|---|---|---|
| Sat 1 | 6:43am | 5:58pm | 11h 15m | 7:26pm | 5:15am |
| Mon 10 | 6:29am | 6:05pm | 11h 36m | 7:33pm | 5:01am |
| Thu 20 | 6:13am | 6:14pm | 12h 01m | 7:42pm | 4:45am |
| Sun 30 | 5:58am | 6:23pm | 12h 25m | 7:52pm | 4:28am |
Days lengthen by about 70 minutes over the month.
The Moon
- First QuarterWed 5, 1:25am
- Full MoonThu 13, 1:24am
- Last QuarterThu 20, 2:12am
- New MoonWed 26, 11:50pm
Apogee 6 Sep (404,900 km) · Perigee 21 Sep (369,700 km)
The planets
Rise/set for mid-month at The Briars.
| Planet | In | Mag | Rise | Transit | Set | Best |
|---|---|---|---|---|---|---|
| Mercury | Vir | −0.8 | 6:51am | 12:55pm | 6:59pm | Hidden |
| Venus | Vir | −3.9 | 7:58am | 2:43pm | 9:28pm | Evening |
| Mars | Ari | −1.8 | 9:47pm | 3:17am | 8:43am | Morning |
| Jupiter | Cap | −2.4 | 1:53pm | 9:03pm | 4:17am | Evening |
| Saturn | Gem | −0.0 | 2:15am | 7:02am | 11:49am | Morning |
| Uranus | Vir | 5.6 | 7:37am | 2:04pm | 8:31pm | Evening |
| Neptune | Sco | 7.9 | 9:49am | 4:56pm | 12:07am | Evening |
The solar system — September 1973
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 24 August 2026.