321.

Moon at First Quarter The Moon reaches first quarter phase – appearing high in the sky at sunset and setting in the west at around midnight. Sun, 31 Aug 2025 at 02:25 EDT (411 days away) in Scorpius

322.

Lunar occultation of Antares The Moon will pass in front of Antares (Alpha Scorpii), creating a lunar occultation visible from Antarctica, New Zealand and Macquarie Island. Sun, 31 Aug 2025 at 06:24 EDT (411 days away) in Scorpius

323.

Aurigid meteor shower 2025 The Aurigid meteor shower reaches its peak. Sun, 31 Aug 2025 (412 days away) in Auriga

324.

Close approach of Venus and M44 Venus and M44 pass close to each other. Sun, 31 Aug 2025 at 23:50 EDT (411 days away) in Cancer

325.

The Moon at aphelion The Moon recedes to its orbit's furthest point from the Sun, which happens each month around the time of full moon. Fri, 05 Sep 2025 at 05:32 EDT (416 days away) in Capricornus

326.

Uranus enters retrograde motion Uranus reverses its direction of motion across the sky. Sat, 06 Sep 2025 at 01:17 EDT (417 days away) in Taurus

327.

Full Moon The Moon reaches full phase and is visible for much of the night. Sun, 07 Sep 2025 at 14:08 EDT (418 days away) in Aquarius

328.

Total lunar eclipse There will be an eclipse of the Moon, visible from Antarctica, Asia, Russia, Africa, Oceania and Europe. Sun, 07 Sep 2025 at 14:11 EDT (418 days away) in Aquarius

329.

Close approach of the Moon, Pluto, Saturn and Neptune The Moon, Pluto, Saturn and Neptune pass close to one another. Mon, 08 Sep 2025 at 13:11 EDT (419 days away) in Pisces

330.

Conjunction of the Moon and Saturn The Moon and Saturn share the same right ascension, at a separation of 3°59'. Mon, 08 Sep 2025 at 16:20 EDT (419 days away) in Pisces

331.

September ε-Perseid meteor shower 2025 The September ε-Perseid meteor shower reaches its peak. Tue, 09 Sep 2025 (420 days away) in Perseus

332.

The Moon at perigee The Moon makes its monthly closest approach to the Earth, making it appear fractionally larger than at other times of the month. Wed, 10 Sep 2025 at 08:09 EDT (421 days away) in Pisces

333.

Close approach of the Moon and M45 The Moon and M45 pass close to each other. Fri, 12 Sep 2025 at 18:10 EDT (423 days away) in Taurus

334.

Mercury at superior solar conjunction Mercury passes around the far side of the Sun. Sat, 13 Sep 2025 at 07:00 EDT (424 days away) in Leo

335.

Moon at Last Quarter The Moon reaches last quarter phase – rising in the east at around midnight and appearing high in the sky by sunrise. Sun, 14 Sep 2025 at 06:33 EDT (425 days away) in Taurus

336.

Lunar occultation of Beta Tauri The Moon will pass in front of Beta Tauri (Elnath), creating a lunar occultation visible from countries and territories including Mexico, the Contiguous United States, French Polynesia and Kiribati amongst others. Sun, 14 Sep 2025 at 08:21 EDT (425 days away) in Taurus

337.

Conjunction of the Moon and Jupiter The Moon and Jupiter share the same right ascension, at a separation of 4°33'. Tue, 16 Sep 2025 at 07:05 EDT (427 days away) in Gemini

338.

Close approach of the Moon and Jupiter The Moon and Jupiter pass close to each other. Tue, 16 Sep 2025 at 08:42 EDT (427 days away) in Gemini

339.

Conjunction of the Moon and Venus The Moon and Venus share the same right ascension, at a separation of 48'. Fri, 19 Sep 2025 at 07:46 EDT (430 days away) in Leo

340.

Close approach of the Moon and Venus The Moon and Venus pass close to each other. Fri, 19 Sep 2025 at 08:30 EDT (430 days away) in Leo