The Sky over the Mornington Peninsula — December 2119
Highlights this month
- 9SatSaturn at opposition — closest and brightest of the year, up all night in Taurus (mag −0.6). (9:56am)
- 13WedJupiter at opposition — closest and brightest of the year, up all night in Taurus (mag −2.7). (11:24pm)
- 14ThuGeminids meteor shower peaks (up to 150/hr). A bright 93% Moon interferes badly this year.
- 14ThuMercury in superior conjunction with the Sun — lost in the glare. (11:51pm)
- 22FriSummer solstice.
- 22FriUrsids meteor shower peaks (up to 10/hr). A bright 77% Moon interferes badly this year.
- 22FriMars in superior conjunction with the Sun — lost in the glare. (8:52pm)
Sun & twilight
| Date | Sunrise | Sunset | Day length | Astro. dark begins | ends |
|---|---|---|---|---|---|
| Fri 1 | 5:51am | 8:27pm | 14h 36m | 10:19pm | 3:59am |
| Sun 10 | 5:50am | 8:35pm | 14h 45m | 10:30pm | 3:55am |
| Wed 20 | 5:52am | 8:42pm | 14h 50m | 10:38pm | 3:55am |
| Sun 31 | 5:58am | 8:46pm | 14h 48m | 10:42pm | 4:02am |
Days lengthen by about 12 minutes over the month.
The Moon
- New MoonSun 3, 12:36am
- First QuarterSat 9, 3:56pm
- Full MoonSun 17, 11:16am
- Last QuarterMon 25, 3:52pm
Perigee 4 Dec (359,000 km) · Apogee 19 Dec (406,200 km)
The planets
Rise/set for mid-month at The Briars.
| Planet | In | Mag | Rise | Transit | Set | Best |
|---|---|---|---|---|---|---|
| Mercury | Oph | −1.1 | 5:47am | 1:15pm | 8:44pm | Hidden |
| Venus | Lib | −3.8 | 3:57am | 10:50am | 5:43pm | Hidden |
| Mars | Oph | 1.3 | 5:58am | 1:23pm | 8:48pm | Hidden |
| Jupiter | Tau | −2.6 | 8:18pm | 1:09am | 5:55am | All night |
| Saturn | Tau | −0.6 | 7:52pm | 12:48am | 5:40am | All night |
| Uranus | Gem | 5.5 | 10:06pm | 2:54am | 7:39am | Morning |
| Neptune | Vir | 8.0 | 3:09am | 9:43am | 4:17pm | 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 bright 93% 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 77% Moon interferes badly this year.
The solar system — December 2119
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 9 September 2026.