341.

Close approach of the Moon and Venus The Moon and Venus pass close to each other. Sat, 09 Dec 2023 at 08:43 EDT (164 days ago) in Virgo

342.

Monocerotid meteor shower 2023 The Monocerotid meteor shower reaches its peak. Sat, 09 Dec 2023 (164 days ago) in Monoceros

343.

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 (164 days ago) in Virgo

344.

σ-Hydrid meteor shower 2023 The σ-Hydrid meteor shower reaches its peak. Tue, 12 Dec 2023 (161 days ago) in Hydra

345.

New Moon The Moon disappears into the Sun's glare for a few days. Tue, 12 Dec 2023 at 18:33 EDT (161 days ago) in Ophiuchus

346.

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 (161 days ago) in Dorado

347.

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 (160 days ago) in Sagittarius

348.

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 (159 days ago) in Sagittarius

349.

Geminid meteor shower 2023 The Geminid meteor shower reaches its peak. Thu, 14 Dec 2023 (159 days ago) in Gemini

350.

The Orion Nebula is well placed The Orion Nebula (M42; mag 4.0) culminates at around midnight local time. Fri, 15 Dec 2023 (158 days ago) in Orion

351.

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 (158 days ago) in Orion

352.

Comae Berenicid meteor shower 2023 The Comae Berenicid meteor shower reaches its peak. Sat, 16 Dec 2023 (157 days ago) in Leo

353.

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. Sat, 16 Dec 2023 at 13:52 EDT (157 days ago) in Capricornus

354.

Conjunction of the Moon and Saturn The Moon and Saturn share the same right ascension, at a separation of 2°28'. Sun, 17 Dec 2023 at 17:01 EDT (156 days ago) in Aquarius

355.

Close approach of the Moon and Saturn The Moon and Saturn pass close to each other. Sun, 17 Dec 2023 at 18:44 EDT (156 days ago) in Aquarius

356.

Lunar occultation of Neptune The Moon will pass in front of Neptune, creating a lunar occultation visible from Australia. Tue, 19 Dec 2023 at 09:16 EDT (154 days ago) in Pisces

357.

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. Tue, 19 Dec 2023 at 13:39 EDT (154 days ago) in Pisces

358.

December Leonis Minorid meteor shower 2023 The December Leonis Minorid meteor shower reaches its peak. Wed, 20 Dec 2023 (153 days ago) in Leo Minor

359.

Mercury at perihelion Mercury passes its orbit's closest point to the Sun. Wed, 20 Dec 2023 at 12:04 EDT (153 days ago) in Sagittarius

360.

Asteroid 4 Vesta at opposition Asteroid 4 Vesta makes closest approach to the Earth. Thu, 21 Dec 2023 at 16:34 EDT (152 days ago) in Orion