1721.

Close approach of the Moon and Saturn The Moon and Saturn pass close to each other. Wed, 30 Aug 2023 at 15:43 EDT (325 days ago) in Aquarius

1722.

Blue Moon The Moon reaches full phase and is visible for much of the night. Wed, 30 Aug 2023 at 21:35 EDT (325 days ago) in Aquarius

1723.

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 (323 days ago) in Pisces

1724.

Aurigid meteor shower 2023 The Aurigid meteor shower reaches its peak. Fri, 01 Sep 2023 (323 days ago) in Auriga

1725.

Jupiter enters retrograde motion Jupiter reverses its direction of motion across the sky. Mon, 04 Sep 2023 at 10:13 EDT (320 days ago) in Aries

1726.

Close approach of the Moon and Jupiter The Moon and Jupiter pass close to each other. Mon, 04 Sep 2023 at 13:37 EDT (320 days ago) in Aries

1727.

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 (320 days ago) in Aries

1728.

Close approach of the Moon and M45 The Moon and M45 pass close to each other. Tue, 05 Sep 2023 at 16:51 EDT (319 days ago) in Taurus

1729.

Mercury at inferior solar conjunction Mercury passes around the near side of the Sun. Wed, 06 Sep 2023 at 07:04 EDT (318 days ago) in Leo

1730.

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 (318 days ago) in Taurus

1731.

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 (317 days ago) in Taurus

1732.

September ε-Perseid meteor shower 2023 The September ε-Perseid meteor shower reaches its peak. Sat, 09 Sep 2023 (315 days ago) in Perseus

1733.

Comet C/2023 P1 (Nishimura) passes perigee Comet C/2023 P1 (Nishimura) makes its closest approach to the Earth. Tue, 12 Sep 2023 (312 days ago) in Leo

1734.

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 (312 days ago) in Leo

1735.

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 (311 days ago) in Leo

1736.

New Moon The Moon disappears into the Sun's glare for a few days. Thu, 14 Sep 2023 at 21:41 EDT (310 days ago) in Leo

1737.

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 (308 days ago) in Virgo

1738.

Comet C/2023 P1 (Nishimura) passes perihelion Comet C/2023 P1 (Nishimura) makes its closest approach to the Sun. Sun, 17 Sep 2023 (307 days ago) in Virgo

1739.

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 (307 days ago) in Virgo

1740.

Venus at greatest brightness Venus reaches its greatest brightness in the dawn sky. Mon, 18 Sep 2023 at 08:09 EDT (306 days ago) in Cancer