The Sky over the Mornington Peninsula — December 2113
Highlights this month
- 1FriJupiter in superior conjunction with the Sun — lost in the glare. (5:29am)
- 2SatMercury in superior conjunction with the Sun — lost in the glare. (6:13am)
- 10SunUranus at opposition — closest and brightest of the year, up all night in Taurus (mag 5.6). (7:32am)
- 10SunVenus in superior conjunction with the Sun — lost in the glare. (5:06pm)
- 14ThuGeminids meteor shower peaks (up to 150/hr). A 32% Moon washes out fainter meteors for part of the night.
- 16SatThe Moon passes Saturn — 3° apart. (8:24am)
- 22FriSummer solstice.
- 22FriUrsids meteor shower peaks (up to 10/hr). A bright 100% Moon interferes badly this year.
Sun & twilight
| Date | Sunrise | Sunset | Day length | Astro. dark begins | ends |
|---|---|---|---|---|---|
| Fri 1 | 5:50am | 8:27pm | 14h 37m | 10:19pm | 3:58am |
| Sun 10 | 5:50am | 8:35pm | 14h 45m | 10:30pm | 3:55am |
| Wed 20 | 5:52am | 8:42pm | 14h 50m | 10:39pm | 3:55am |
| Sun 31 | 5:59am | 8:46pm | 14h 47m | 10:42pm | 4:03am |
Days lengthen by about 11 minutes over the month.
The Moon
- New MoonFri 8, 7:55pm
- First QuarterSat 16, 10:23am
- Full MoonSat 23, 2:07am
- Last QuarterSat 30, 10:06am
Apogee 5 Dec (405,900 km) · Perigee 21 Dec (362,300 km)
The planets
Rise/set for mid-month at The Briars.
| Planet | In | Mag | Rise | Transit | Set | Best |
|---|---|---|---|---|---|---|
| Mercury | Sgr | −0.9 | 6:15am | 1:47pm | 9:19pm | Hidden |
| Venus | Oph | −3.8 | 5:56am | 1:20pm | 8:44pm | Hidden |
| Mars | Lib | 1.7 | 3:37am | 10:28am | 5:20pm | Hidden |
| Jupiter | Oph | −1.6 | 5:11am | 12:26pm | 7:41pm | Hidden |
| Saturn | Psc | 1.0 | 1:03pm | 7:21pm | 1:42am | Evening |
| Uranus | Tau | 5.6 | 8:04pm | 12:53am | 5:37am | All night |
| Neptune | Vir | 7.9 | 2:34am | 8:53am | 3:12pm | 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 32% Moon washes out fainter meteors for part of the night.
- Ursids — peaks 22 December, radiant in Ursa Minor (up to 10/hr). A circumpolar northern shower whose radiant never rises from Victoria. A bright 100% Moon interferes badly this year.
The solar system — December 2113
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 7 September 2026.