341.

Lunar occultation of Mars The Moon will pass in front of Mars, creating a lunar occultation visible from Australia. Fri, 31 Dec 2021 at 14:52 EDT (929 days ago) in Ophiuchus

342.

Close approach of the Moon and Mars The Moon and Mars pass close to each other. Fri, 31 Dec 2021 at 14:52 EDT (929 days ago) in Ophiuchus

343.

The Rosette Nebula is well placed The Rosette Nebula (C49; mag 9.0) in Monoceros culminates at around midnight local time. Wed, 29 Dec 2021 (931 days ago) in Monoceros

344.

Conjunction of Venus and Mercury Venus and Mercury share the same right ascension, at a separation of 4°13'. Tue, 28 Dec 2021 at 20:10 EDT (932 days ago) in Sagittarius

345.

The cluster NGC 2232 is well placed The open star cluster NGC 2232 (mag 4.2) in Monoceros culminates at around midnight local time. Tue, 28 Dec 2021 (932 days ago) in Monoceros

346.

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, 26 Dec 2021 at 21:24 EDT (934 days ago) in Virgo

347.

Ursid meteor shower 2021 The Ursid meteor shower reaches its peak. Wed, 22 Dec 2021 (938 days ago) in Ursa Minor

348.

December solstice 21 December will be the shortest day of 2021 in the northern hemisphere. Tue, 21 Dec 2021 at 10:53 EDT (939 days ago) in Sagittarius

349.

December Leonis Minorid meteor shower 2021 The December Leonis Minorid meteor shower reaches its peak. Sun, 19 Dec 2021 (941 days ago) in Leo Minor

350.

Full Moon The Moon reaches full phase and is visible for much of the night. Sat, 18 Dec 2021 at 23:35 EDT (941 days ago) in Taurus

351.

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. Sat, 18 Dec 2021 at 01:57 EDT (942 days ago) in Taurus

352.

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, 17 Dec 2021 at 21:14 EDT (943 days ago) in Taurus

353.

Comae Berenicid meteor shower 2021 The Comae Berenicid meteor shower reaches its peak. Wed, 15 Dec 2021 (944 days ago) in Leo

354.

The Orion Nebula is well placed The Orion Nebula (M42; mag 4.0) culminates at around midnight local time. Wed, 15 Dec 2021 (945 days ago) in Orion

355.

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. Wed, 15 Dec 2021 (945 days ago) in Orion

356.

Geminid meteor shower 2021 The Geminid meteor shower reaches its peak. Tue, 14 Dec 2021 (946 days ago) in Gemini

357.

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. Sun, 12 Dec 2021 (948 days ago) in Dorado

358.

Comet C/2021 A1 (Leonard) passes perigee Comet C/2021 A1 (Leonard) makes its closest approach to the Earth. Sun, 12 Dec 2021 (948 days ago) in Ophiuchus

359.

σ-Hydrid meteor shower 2021 The σ-Hydrid meteor shower reaches its peak. Sat, 11 Dec 2021 (948 days ago) in Hydra

360.

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. Fri, 10 Dec 2021 at 20:36 EDT (950 days ago) in Aquarius