The Sky over the Mornington Peninsula — December 2127
Highlights this month
- 7SunThe Moon passes Jupiter — 4° apart. (10:44pm)
- 9TueThe Moon passes Mars — 3° apart. (1:44pm)
- 14SunGeminids meteor shower peaks (up to 150/hr). A bright 82% Moon interferes badly this year.
- 22MonSummer solstice.
- 22MonUrsids meteor shower peaks (up to 10/hr). A bright 89% Moon interferes badly this year.
- 27SatMercury at greatest evening elongation (20° from the Sun, mag −0.5) — best evening apparition. (10:57am)
- 27SatThe Moon passes Saturn — 0.6° apart. (11:24am)
Sun & twilight
| Date | Sunrise | Sunset | Day length | Astro. dark begins | ends |
|---|---|---|---|---|---|
| Mon 1 | 5:51am | 8:27pm | 14h 36m | 10:19pm | 3:59am |
| Wed 10 | 5:50am | 8:35pm | 14h 45m | 10:30pm | 3:55am |
| Sat 20 | 5:52am | 8:42pm | 14h 50m | 10:38pm | 3:55am |
| Wed 31 | 5:58am | 8:46pm | 14h 48m | 10:42pm | 4:02am |
Days lengthen by about 11 minutes over the month.
The Moon
- New MoonThu 4, 8:06am
- First QuarterThu 11, 3:01am
- Full MoonFri 19, 6:41am
- Last QuarterSat 27, 3:30am
Perigee 4 Dec (356,700 km) · Apogee 17 Dec (406,200 km)
The planets
Rise/set for mid-month at The Briars.
| Planet | In | Mag | Rise | Transit | Set | Best |
|---|---|---|---|---|---|---|
| Mercury | Sgr | −0.7 | 6:53am | 2:26pm | 9:58pm | Hidden |
| Venus | Lib | −3.8 | 3:59am | 10:52am | 5:46pm | Hidden |
| Mars | Aqr | 0.6 | 11:23am | 6:03pm | 12:46am | Evening |
| Jupiter | Cap | −1.8 | 9:16am | 4:22pm | 11:28pm | Evening |
| Saturn | Vir | 0.8 | 2:15am | 8:21am | 2:27pm | Morning |
| Uranus | Leo | 5.4 | 12:16am | 5:31am | 10:46am | Morning |
| Neptune | Lib | 8.0 | 3:56am | 10:48am | 5:40pm | Hidden |
Meteor showers
- Geminids — peaks 14 December, radiant in Gemini (up to 150/hr). The richest shower of the year; the radiant reaches a useful altitude after local midnight, so it rewards southern observers well. A bright 82% Moon interferes badly this year.
- Ursids — peaks 22 December, radiant in Ursa Minor (up to 10/hr). A circumpolar northern shower whose radiant never rises from Victoria. A bright 89% Moon interferes badly this year.
The solar system — December 2127
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 11 September 2026.