The Sky over the Mornington Peninsula — October 2100
Highlights this month
- 9SatMercury in inferior conjunction with the Sun — lost in the glare. (5:59pm)
- 11MonMars in superior conjunction with the Sun — lost in the glare. (6:23pm)
- 17SunUranus at opposition — closest and brightest of the year, up all night in Pisces (mag 5.7). (9:46am)
- 18MonMercury is stationary — resumes direct (eastward) motion. (2:18am)
- 21ThuOrionids meteor shower peaks (up to 20/hr). A bright 92% Moon interferes badly this year.
- 23SatSaturn in superior conjunction with the Sun — lost in the glare. (7:36am)
- 25MonMercury at greatest morning elongation (18° from the Sun, mag −0.6) — best morning apparition. (6:44am)
- 27WedJupiter in superior conjunction with the Sun — lost in the glare. (10:50am)
Sun & twilight
| Date | Sunrise | Sunset | Day length | Astro. dark begins | ends |
|---|---|---|---|---|---|
| Fri 1 | 5:56am | 6:24pm | 12h 28m | 7:54pm | 4:26am |
| Sun 10 | 6:42am | 7:32pm | 12h 50m | 9:04pm | 5:11am |
| Wed 20 | 6:28am | 7:42pm | 13h 15m | 9:17pm | 4:54am |
| Sun 31 | 6:14am | 7:54pm | 13h 40m | 9:32pm | 4:36am |
Days lengthen by about 72 minutes over the month.
The Moon
- New MoonMon 4, 5:06am
- First QuarterSun 10, 7:30pm
- Full MoonMon 18, 3:12pm
- Last QuarterTue 26, 6:22pm
Perigee 5 Oct (358,800 km) · Apogee 20 Oct (406,200 km)
The planets
Rise/set for mid-month at The Briars.
| Planet | In | Mag | Rise | Transit | Set | Best |
|---|---|---|---|---|---|---|
| Mercury | Vir | 2.1 | 6:09am | 12:24pm | 6:38pm | Hidden |
| Venus | Leo | −3.8 | 5:21am | 11:07am | 4:52pm | Hidden |
| Mars | Vir | 1.6 | 6:36am | 1:02pm | 7:28pm | Hidden |
| Jupiter | Vir | −1.5 | 7:05am | 1:42pm | 8:19pm | Hidden |
| Saturn | Vir | 0.5 | 7:04am | 1:34pm | 8:05pm | Hidden |
| Uranus | Psc | 5.7 | 7:37pm | 1:16am | 6:50am | All night |
| Neptune | Leo | 8.0 | 5:19am | 11:04am | 4:49pm | Hidden |
Meteor showers
- Orionids — peaks 21 October, radiant in Orion (up to 20/hr). Also from Halley's Comet; Orion rides high after midnight from the south, giving a fair show. A bright 92% Moon interferes badly this year.
The solar system — October 2100
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 2 September 2026.