The Sky over the Mornington Peninsula — December 2107
Highlights this month
- 1ThuThe Moon passes Jupiter — 4° apart. (2:29pm)
- 4SunVenus and Saturn in conjunction — 2° apart. (11:22pm)
- 8ThuThe Moon passes Mars — 4° apart. (1:33pm)
- 9FriJupiter at opposition — closest and brightest of the year, up all night in Taurus (mag −2.7). (2:51am)
- 14WedGeminids meteor shower peaks (up to 150/hr). A thin 0% Moon leaves the sky dark.
- 22ThuSummer solstice.
- 22ThuUrsids meteor shower peaks (up to 10/hr). A 47% Moon washes out fainter meteors for part of the night.
- 28WedThe Moon passes Jupiter — 4° apart. (5:59pm)
Sun & twilight
| Date | Sunrise | Sunset | Day length | Astro. dark begins | ends |
|---|---|---|---|---|---|
| Thu 1 | 5:51am | 8:26pm | 14h 36m | 10:19pm | 3:59am |
| Sat 10 | 5:50am | 8:35pm | 14h 45m | 10:30pm | 3:55am |
| Tue 20 | 5:52am | 8:42pm | 14h 50m | 10:38pm | 3:55am |
| Sat 31 | 5:58am | 8:46pm | 14h 48m | 10:42pm | 4:02am |
Days lengthen by about 12 minutes over the month.
The Moon
- Last QuarterWed 7, 7:21pm
- New MoonWed 14, 10:31pm
- First QuarterThu 22, 11:41pm
- Full MoonFri 30, 11:27am
Perigee 6 Dec (369,200 km) · Apogee 21 Dec (405,000 km)
The planets
Rise/set for mid-month at The Briars.
| Planet | In | Mag | Rise | Transit | Set | Best |
|---|---|---|---|---|---|---|
| Mercury | Sgr | −0.7 | 6:41am | 2:14pm | 9:47pm | Hidden |
| Venus | Sgr | −3.8 | 8:34am | 3:53pm | 11:12pm | Evening |
| Mars | Vir | 1.0 | 1:51am | 7:45am | 1:38pm | Morning |
| Jupiter | Tau | −2.6 | 7:52pm | 12:45am | 5:33am | All night |
| Saturn | Sgr | 0.4 | 7:44am | 3:01pm | 10:18pm | Hidden |
| Uranus | Ari | 5.7 | 5:57pm | 11:00pm | 4:08am | Evening |
| Neptune | Vir | 7.9 | 2:04am | 8:07am | 2:11pm | Morning |
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 thin 0% Moon leaves the sky dark.
- Ursids — peaks 22 December, radiant in Ursa Minor (up to 10/hr). A circumpolar northern shower whose radiant never rises from Victoria. A 47% Moon washes out fainter meteors for part of the night.
The solar system — December 2107
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 4 September 2026.