The Sky over the Mornington Peninsula — December 2146
Highlights this month
- 13TueThe Moon passes Mars — 3° apart. (12:32am)
- 14WedGeminids meteor shower peaks (up to 150/hr). A bright 85% Moon interferes badly this year.
- 14WedThe Moon passes Saturn — 2° apart. (8:45pm)
- 19MonNeptune in superior conjunction with the Sun — lost in the glare. (8:01pm)
- 22ThuSummer solstice.
- 22ThuUrsids meteor shower peaks (up to 10/hr). A bright 85% Moon interferes badly this year.
- 27TueThe Moon passes Jupiter — 1° apart. (4:15am)
- 30FriThe Moon passes Venus — 2° apart. (1:22pm)
Sun & twilight
| Date | Sunrise | Sunset | Day length | Astro. dark begins | ends |
|---|---|---|---|---|---|
| Thu 1 | 5:50am | 8:27pm | 14h 37m | 10:19pm | 3:58am |
| Sat 10 | 5:50am | 8:35pm | 14h 45m | 10:30pm | 3:54am |
| Tue 20 | 5:52am | 8:42pm | 14h 50m | 10:39pm | 3:55am |
| Sat 31 | 5:59am | 8:46pm | 14h 47m | 10:42pm | 4:03am |
Days lengthen by about 11 minutes over the month.
The Moon
- New MoonSun 4, 8:08am
- First QuarterSat 10, 11:45pm
- Full MoonSun 18, 1:59pm
- Last QuarterMon 26, 7:31pm
Perigee 6 Dec (362,000 km) · Apogee 22 Dec (405,900 km)
The planets
Rise/set for mid-month at The Briars.
| Planet | In | Mag | Rise | Transit | Set | Best |
|---|---|---|---|---|---|---|
| Mercury | Sgr | −0.8 | 6:20am | 1:52pm | 9:24pm | Hidden |
| Venus | Vir | −4.3 | 3:28am | 10:07am | 4:47pm | Morning |
| Mars | Psc | −0.6 | 3:05pm | 8:46pm | 2:29am | Evening |
| Jupiter | Vir | −1.7 | 2:08am | 8:17am | 2:25pm | Morning |
| Saturn | Ari | −0.0 | 4:53pm | 10:16pm | 3:42am | Evening |
| Uranus | Lib | 5.7 | 4:00am | 11:00am | 6:01pm | Hidden |
| Neptune | Sgr | 8.0 | 6:16am | 1:33pm | 8:50pm | 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 85% 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 85% Moon interferes badly this year.
The solar system — December 2146
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 18 September 2026.