The Sky over the Mornington Peninsula — September 2188
Highlights this month
- 6SatMercury is stationary — resumes direct (eastward) motion. (12:56am)
- 8MonThe Moon passes Jupiter — 3° apart. (1:02am)
- 13SatMercury at greatest morning elongation (18° from the Sun, mag −0.3) — best morning apparition. (8:45pm)
- 21SunNeptune at opposition — closest and brightest of the year, up all night in Pisces (mag 7.8). (3:32pm)
- 22MonSpring equinox.
- 22MonThe Moon passes Saturn — 5° apart. (7:13pm)
- 25ThuJupiter at opposition — closest and brightest of the year, up all night in Pisces (mag −2.8). (7:58pm)
Sun & twilight
| Date | Sunrise | Sunset | Day length | Astro. dark begins | ends |
|---|---|---|---|---|---|
| Mon 1 | 6:41am | 5:59pm | 11h 18m | 7:27pm | 5:14am |
| Wed 10 | 6:28am | 6:07pm | 11h 39m | 7:34pm | 5:00am |
| Sat 20 | 6:12am | 6:15pm | 12h 03m | 7:43pm | 4:44am |
| Tue 30 | 5:56am | 6:24pm | 12h 28m | 7:54pm | 4:27am |
Days lengthen by about 70 minutes over the month.
The Moon
- Full MoonSat 6, 5:46am
- Last QuarterSun 14, 10:06am
- New MoonSun 21, 9:26am
- First QuarterSun 28, 12:46am
Apogee 9 Sep (405,900 km) · Perigee 22 Sep (357,800 km)
The planets
Rise/set for mid-month at The Briars.
| Planet | In | Mag | Rise | Transit | Set | Best |
|---|---|---|---|---|---|---|
| Mercury | Leo | −0.6 | 5:40am | 11:10am | 4:41pm | Hidden |
| Venus | Leo | −3.8 | 4:55am | 10:08am | 3:22pm | Hidden |
| Mars | Leo | 1.8 | 5:06am | 10:19am | 3:31pm | Hidden |
| Jupiter | Psc | −2.7 | 6:56pm | 1:02am | 7:02am | Morning |
| Saturn | Vir | 0.7 | 7:45am | 2:08pm | 8:31pm | Evening |
| Uranus | Ari | 5.7 | 10:07pm | 3:23am | 8:36am | Morning |
| Neptune | Psc | 7.8 | 6:31pm | 12:42am | 6:48am | All night |
The solar system — September 2188
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 17 October 2026.