The Sky over the Mornington Peninsula — September 2090
Highlights this month
- 1FriThe Moon passes Jupiter — 5° apart. (1:53pm)
- 2SatMercury at greatest morning elongation (18° from the Sun, mag −0.2) — best morning apparition. (5:36am)
- 6WedUranus at opposition — closest and brightest of the year, up all night in Aquarius (mag 5.8). (8:29am)
- 12TueVenus is stationary — begins retrograde (westward) motion. (11:31am)
- 17SunThe Moon passes Saturn — 4° apart. (10:44am)
- 20WedThe Moon passes Mars — 5° apart. (4:15am)
- 22FriSpring equinox.
- 27WedMercury in superior conjunction with the Sun — lost in the glare. (5:05pm)
- 29FriThe Moon passes Jupiter — 5° apart. (2:56am)
Sun & twilight
| Date | Sunrise | Sunset | Day length | Astro. dark begins | ends |
|---|---|---|---|---|---|
| Fri 1 | 6:42am | 5:59pm | 11h 17m | 7:26pm | 5:14am |
| Sun 10 | 6:28am | 6:06pm | 11h 38m | 7:34pm | 5:00am |
| Wed 20 | 6:12am | 6:15pm | 12h 02m | 7:43pm | 4:44am |
| Sat 30 | 5:57am | 6:24pm | 12h 27m | 7:53pm | 4:27am |
Days lengthen by about 70 minutes over the month.
The Moon
- First QuarterFri 1, 10:39am
- Full MoonSat 9, 8:48am
- Last QuarterSun 17, 9:56am
- New MoonSun 24, 3:06am
- First QuarterSat 30, 10:18pm
Apogee 10 Sep (406,300 km) · Perigee 23 Sep (356,800 km)
The planets
Rise/set for mid-month at The Briars.
| Planet | In | Mag | Rise | Transit | Set | Best |
|---|---|---|---|---|---|---|
| Mercury | Leo | −1.3 | 6:03am | 11:38am | 5:15pm | Hidden |
| Venus | Vir | −4.5 | 6:54am | 1:43pm | 8:32pm | Evening |
| Mars | Cnc | 1.4 | 3:56am | 8:48am | 1:40pm | Morning |
| Jupiter | Oph | −1.8 | 10:08am | 5:24pm | 12:44am | Evening |
| Saturn | Tau | −0.1 | 1:32am | 6:21am | 11:10am | Morning |
| Uranus | Aqr | 5.8 | 5:15pm | 11:40pm | 6:09am | All night |
| Neptune | Leo | 8.0 | 5:16am | 10:36am | 3:56pm | Hidden |
The solar system — September 2090
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 29 August 2026.