The Sky over the Mornington Peninsula — September 1990
Highlights this month
- 1SatThe Moon passes Saturn — 2° apart. (10:12am)
- 8SatMercury in inferior conjunction with the Sun — lost in the glare. (1:53pm)
- 15SatUranus is stationary — resumes direct (eastward) motion. (1:42am)
- 15SatThe Moon passes Jupiter — 0.3° apart. (3:43pm)
- 17MonMercury is stationary — resumes direct (eastward) motion. (2:11am)
- 23SunSaturn is stationary — resumes direct (eastward) motion. (9:41am)
- 23SunSpring equinox.
- 23SunNeptune is stationary — resumes direct (eastward) motion. (9:56pm)
- 24MonMercury at greatest morning elongation (18° from the Sun, mag −0.5) — best morning apparition. (1:48pm)
- 28FriThe Moon passes Saturn — 1° apart. (6:11pm)
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 | 5:02am |
| Thu 20 | 6:14am | 6:14pm | 12h 00m | 7:42pm | 4:46am |
| Sun 30 | 5:58am | 6:23pm | 12h 25m | 7:52pm | 4:29am |
Days lengthen by about 70 minutes over the month.
The Moon
- Full MoonWed 5, 11:50am
- Last QuarterWed 12, 6:55am
- New MoonWed 19, 10:46am
- First QuarterThu 27, 12:04pm
Perigee 10 Sep (368,300 km) · Apogee 25 Sep (405,100 km)
The planets
Rise/set for mid-month at The Briars.
| Planet | In | Mag | Rise | Transit | Set | Best |
|---|---|---|---|---|---|---|
| Mercury | Leo | 2.1 | 5:47am | 11:28am | 5:10pm | Hidden |
| Venus | Leo | −3.7 | 5:58am | 11:32am | 5:05pm | Hidden |
| Mars | Tau | −0.6 | 12:09am | 5:05am | 10:02am | Morning |
| Jupiter | Cnc | −1.7 | 4:18am | 9:17am | 2:16pm | Morning |
| Saturn | Sgr | 0.3 | 12:48pm | 8:05pm | 3:26am | Evening |
| Uranus | Sgr | 5.7 | 11:45am | 7:08pm | 2:35am | Evening |
| Neptune | Sgr | 7.9 | 12:18pm | 7:34pm | 2:55am | Evening |
The solar system — September 1990
Evening sky Morning sky Up much of the night Lost in the Sun’s glare
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Generated automatically from the MPAS sky engine on 19 August 2026.