The Sky over the Mornington Peninsula — September 1984
Highlights this month
- 2SunThe Moon passes Mars — 2° apart. (6:14pm)
- 4TueThe Moon passes Jupiter — 3° apart. (2:26pm)
- 6ThuMercury is stationary — resumes direct (eastward) motion. (6:13pm)
- 10MonNeptune is stationary — resumes direct (eastward) motion. (3:41am)
- 14FriMercury at greatest morning elongation (18° from the Sun, mag −0.4) — best morning apparition. (11:08am)
- 23SunSpring equinox.
- 27ThuThe Moon passes Venus — 2° apart. (12:19pm)
- 28FriThe Moon passes Saturn — 0.8° apart. (7:49am)
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 37m | 7:33pm | 5:01am |
| Thu 20 | 6:13am | 6:14pm | 12h 02m | 7:43pm | 4:45am |
| Sun 30 | 5:57am | 6:23pm | 12h 26m | 7:53pm | 4:28am |
Days lengthen by about 70 minutes over the month.
The Moon
- First QuarterSun 2, 8:29pm
- Full MoonMon 10, 5:02pm
- Last QuarterTue 18, 7:35pm
- New MoonTue 25, 1:17pm
Apogee 12 Sep (406,200 km) · Perigee 25 Sep (356,700 km)
The planets
Rise/set for mid-month at The Briars.
| Planet | In | Mag | Rise | Transit | Set | Best |
|---|---|---|---|---|---|---|
| Mercury | Leo | −0.5 | 5:40am | 11:10am | 4:39pm | Hidden |
| Venus | Vir | −3.7 | 7:25am | 1:47pm | 8:10pm | Evening |
| Mars | Oph | 0.1 | 10:14am | 5:43pm | 1:14am | Evening |
| Jupiter | Sgr | −2.1 | 11:35am | 6:57pm | 2:23am | Evening |
| Saturn | Lib | 0.5 | 8:40am | 3:26pm | 10:13pm | Evening |
| Uranus | Oph | 5.7 | 9:59am | 5:15pm | 12:35am | Evening |
| Neptune | Sgr | 7.9 | 11:19am | 6:36pm | 1:57am | Evening |
The solar system — September 1984
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 22 August 2026.