1841.

Mercury at greatest elongation east Mercury is bright and well placed in the evening sky. Mon, 04 Dec 2023 at 12:26 EDT (230 days ago) in Sagittarius

1842.

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. Mon, 04 Dec 2023 at 13:42 EDT (230 days ago) in Leo

1843.

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. Tue, 05 Dec 2023 at 00:49 EDT (229 days ago) in Leo

1844.

Neptune ends retrograde motion Neptune returns to its usual eastward motion after opposition. Wed, 06 Dec 2023 at 07:38 EDT (228 days ago) in Aquarius

1845.

December φ-Cassiopeid meteor shower 2023 The December φ-Cassiopeid meteor shower reaches its peak. Wed, 06 Dec 2023 (228 days ago) in Andromeda

1846.

Puppid-Velid meteor shower 2023 The Puppid-Velid meteor shower reaches its peak. Thu, 07 Dec 2023 (227 days ago) in Vela

1847.

Mercury at dichotomy Mercury reaches half phase in the evening sky. Fri, 08 Dec 2023 at 06:44 EDT (226 days ago) in Sagittarius

1848.

Mercury at highest altitude in evening sky Mercury is bright and well placed in the evening sky. Fri, 08 Dec 2023 (226 days ago) in Sagittarius

1849.

Close approach of the Moon and Venus The Moon and Venus pass close to each other. Sat, 09 Dec 2023 at 08:43 EDT (225 days ago) in Virgo

1850.

Monocerotid meteor shower 2023 The Monocerotid meteor shower reaches its peak. Sat, 09 Dec 2023 (225 days ago) in Monoceros

1851.

Conjunction of the Moon and Venus The Moon and Venus share the same right ascension, at a separation of 3°38'. Sat, 09 Dec 2023 at 11:54 EDT (225 days ago) in Virgo

1852.

σ-Hydrid meteor shower 2023 The σ-Hydrid meteor shower reaches its peak. Tue, 12 Dec 2023 (222 days ago) in Hydra

1853.

New Moon The Moon disappears into the Sun's glare for a few days. Tue, 12 Dec 2023 at 18:33 EDT (222 days ago) in Ophiuchus

1854.

The Large Magellanic Cloud is well placed The Milky Way's dwarf companion, the Large Magellanic Cloud (LMC; mag 0.9), in Dorado culminates at around midnight local time. Tue, 12 Dec 2023 (222 days ago) in Dorado

1855.

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. Wed, 13 Dec 2023 at 10:39 EDT (221 days ago) in Sagittarius

1856.

Conjunction of the Moon and Mercury The Moon and Mercury share the same right ascension, at a separation of 4°21'. Thu, 14 Dec 2023 at 00:20 EDT (220 days ago) in Sagittarius

1857.

Geminid meteor shower 2023 The Geminid meteor shower reaches its peak. Thu, 14 Dec 2023 (220 days ago) in Gemini

1858.

The Orion Nebula is well placed The Orion Nebula (M42; mag 4.0) culminates at around midnight local time. Fri, 15 Dec 2023 (219 days ago) in Orion

1859.

The Running Man cluster is well placed The Running Man cluster NGC 1977 (mag 4.2) in Orion's sword culminates at around midnight local time. Fri, 15 Dec 2023 (219 days ago) in Orion

1860.

Comae Berenicid meteor shower 2023 The Comae Berenicid meteor shower reaches its peak. Sat, 16 Dec 2023 (218 days ago) in Leo