441.

Close approach of the Moon and Saturn The Moon and Saturn pass close to each other. Wed, 30 Aug 2023 at 15:43 EDT (351 days ago) in Aquarius

442.

Blue Moon The Moon reaches full phase and is visible for much of the night. Wed, 30 Aug 2023 at 21:35 EDT (351 days ago) in Aquarius

443.

Lunar occultation of Neptune The Moon will pass in front of Neptune creating a lunar occultation, though it will open be visible only at sea. Fri, 01 Sep 2023 at 04:21 EDT (349 days ago) in Pisces

444.

Aurigid meteor shower 2023 The Aurigid meteor shower reaches its peak. Fri, 01 Sep 2023 (349 days ago) in Auriga

445.

Jupiter enters retrograde motion Jupiter reverses its direction of motion across the sky. Mon, 04 Sep 2023 at 10:13 EDT (346 days ago) in Aries

446.

Close approach of the Moon and Jupiter The Moon and Jupiter pass close to each other. Mon, 04 Sep 2023 at 13:37 EDT (346 days ago) in Aries

447.

Conjunction of the Moon and Jupiter The Moon and Jupiter share the same right ascension, at a separation of 3°18'. Mon, 04 Sep 2023 at 15:47 EDT (346 days ago) in Aries

448.

Close approach of the Moon and M45 The Moon and M45 pass close to each other. Tue, 05 Sep 2023 at 16:51 EDT (345 days ago) in Taurus

449.

Mercury at inferior solar conjunction Mercury passes around the near side of the Sun. Wed, 06 Sep 2023 at 07:04 EDT (344 days ago) in Leo

450.

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. Wed, 06 Sep 2023 at 18:21 EDT (344 days ago) in Taurus

451.

Lunar occultation of Beta Tauri The Moon will pass in front of Beta Tauri (Elnath) creating a lunar occultation, though it will open be visible only at sea. Thu, 07 Sep 2023 at 11:20 EDT (343 days ago) in Taurus

452.

September ε-Perseid meteor shower 2023 The September ε-Perseid meteor shower reaches its peak. Sat, 09 Sep 2023 (341 days ago) in Perseus

453.

Comet C/2023 P1 (Nishimura) passes perigee Comet C/2023 P1 (Nishimura) makes its closest approach to the Earth. Tue, 12 Sep 2023 (338 days ago) in Leo

454.

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. Tue, 12 Sep 2023 at 11:42 EDT (338 days ago) in Leo

455.

Conjunction of the Moon and Mercury The Moon and Mercury share the same right ascension, at a separation of 5°59'. Wed, 13 Sep 2023 at 13:41 EDT (337 days ago) in Leo

456.

New Moon The Moon disappears into the Sun's glare for a few days. Thu, 14 Sep 2023 at 21:41 EDT (336 days ago) in Leo

457.

Conjunction of the Moon and Mars The Moon and Mars share the same right ascension, at a separation of 39'. Sat, 16 Sep 2023 at 15:20 EDT (334 days ago) in Virgo

458.

Comet C/2023 P1 (Nishimura) passes perihelion Comet C/2023 P1 (Nishimura) makes its closest approach to the Sun. Sun, 17 Sep 2023 (333 days ago) in Virgo

459.

The Moon at perihelion The Moon passes its orbit's closest point to the Sun, which happens each month around the time of new moon. Sun, 17 Sep 2023 at 13:19 EDT (333 days ago) in Virgo

460.

Venus at greatest brightness Venus reaches its greatest brightness in the dawn sky. Mon, 18 Sep 2023 at 08:09 EDT (332 days ago) in Cancer