321.

Lunar occultation of Spica The Moon will pass in front of Spica (Alpha Virginis), creating a lunar occultation visible from Antarctica. Wed, 27 Aug 2025 at 09:40 EDT (490 days away) in Virgo

322.

The Moon at apogee The Moon recedes to its orbit's furthest point from the Earth, making it appear fractionally smaller than at other times of the month. Fri, 29 Aug 2025 at 11:33 EDT (492 days away) in Libra

323.

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 (494 days away) in Scorpius

324.

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 (494 days away) in Scorpius

325.

Aurigid meteor shower 2025 The Aurigid meteor shower reaches its peak. Sun, 31 Aug 2025 (495 days away) in Auriga

326.

Close approach of Venus and M44 Venus and M44 pass close to each other. Sun, 31 Aug 2025 at 23:50 EDT (494 days away) in Cancer

327.

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 (499 days away) in Capricornus

328.

Uranus enters retrograde motion Uranus reverses its direction of motion across the sky. Sat, 06 Sep 2025 at 01:17 EDT (500 days away) in Taurus

329.

Full Moon The Moon reaches full phase and is visible for much of the night. Sun, 07 Sep 2025 at 14:08 EDT (501 days away) in Aquarius

330.

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 (501 days away) in Aquarius

331.

Close approach of the Moon, Saturn and Neptune The Moon, Saturn and Neptune pass close to one another. Mon, 08 Sep 2025 at 13:11 EDT (502 days away) in Pisces

332.

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 (502 days away) in Pisces

333.

September ε-Perseid meteor shower 2025 The September ε-Perseid meteor shower reaches its peak. Tue, 09 Sep 2025 (503 days away) in Perseus

334.

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 (504 days away) in Pisces

335.

Close approach of the Moon and M45 The Moon and M45 pass close to each other. Fri, 12 Sep 2025 at 18:10 EDT (506 days away) in Taurus

336.

Mercury at superior solar conjunction Mercury passes around the far side of the Sun. Sat, 13 Sep 2025 at 07:00 EDT (507 days away) in Leo

337.

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 (508 days away) in Taurus

338.

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 (508 days away) in Taurus

339.

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 (510 days away) in Gemini

340.

Close approach of the Moon and Jupiter The Moon and Jupiter pass close to each other. Tue, 16 Sep 2025 at 08:42 EDT (510 days away) in Gemini