The Sky over the Mornington Peninsula — August 2139
Highlights this month
- 7FriSaturn at opposition — closest and brightest of the year, up all night in Capricornus (mag 0.1). (12:45pm)
- 9SunMercury in superior conjunction with the Sun — lost in the glare. (10:26pm)
- 9SunThe Moon passes Jupiter — 0.7° apart. (10:37pm)
- 10MonThe Moon passes Saturn — 2° apart. (12:47pm)
- 13ThuPerseids meteor shower peaks (up to 100/hr). A bright 88% Moon interferes badly this year.
- 22SatNeptune is stationary — resumes direct (eastward) motion. (7:50am)
Sun & twilight
| Date | Sunrise | Sunset | Day length | Astro. dark begins | ends |
|---|---|---|---|---|---|
| Sat 1 | 7:22am | 5:32pm | 10h 10m | 7:03pm | 5:51am |
| Mon 10 | 7:12am | 5:39pm | 10h 27m | 7:09pm | 5:43am |
| Thu 20 | 7:00am | 5:48pm | 10h 48m | 7:16pm | 5:31am |
| Mon 31 | 6:45am | 5:57pm | 11h 13m | 7:25pm | 5:17am |
Days lengthen by about 63 minutes over the month.
The Moon
- First QuarterMon 3, 12:11pm
- Full MoonMon 10, 6:30pm
- Last QuarterMon 17, 8:56am
- New MoonMon 24, 11:35pm
Perigee 12 Aug (361,300 km) · Apogee 28 Aug (406,000 km)
The planets
Rise/set for mid-month at The Briars.
| Planet | In | Mag | Rise | Transit | Set | Best |
|---|---|---|---|---|---|---|
| Mercury | Leo | −1.4 | 7:31am | 12:50pm | 6:10pm | Hidden |
| Venus | Leo | −3.7 | 7:39am | 1:03pm | 6:26pm | Hidden |
| Mars | Gem | 1.6 | 5:30am | 10:16am | 3:02pm | Hidden |
| Jupiter | Cap | −2.6 | 4:07pm | 11:14pm | 6:27am | Evening |
| Saturn | Cap | 0.1 | 4:51pm | 11:51pm | 6:55am | All night |
| Uranus | Vir | 5.6 | 9:19am | 3:36pm | 9:52pm | Evening |
| Neptune | Oph | 7.9 | 12:09pm | 7:19pm | 2:33am | Evening |
Meteor showers
- Perseids — peaks 13 August, radiant in Perseus (up to 100/hr). The famous northern shower, but its far-northern radiant scarcely rises from Victoria — only a trickle this far south. A bright 88% Moon interferes badly this year.
The solar system — August 2139
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 15 September 2026.