181.

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 (869 days ago) in Aquarius

182.

σ-Hydrid meteor shower 2021 The σ-Hydrid meteor shower reaches its peak. Sat, 11 Dec 2021 (867 days ago) in Hydra

183.

Comet C/2021 A1 (Leonard) passes perigee Comet C/2021 A1 (Leonard) makes its closest approach to the Earth. Sun, 12 Dec 2021 (867 days ago) in Ophiuchus

184.

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 (867 days ago) in Dorado

185.

Conjunction of Venus and Pluto Venus and Pluto share the same right ascension, at a separation of 20'. Mon, 13 Dec 2021 at 01:37 EDT (866 days ago) in Sagittarius

186.

Geminid meteor shower 2021 The Geminid meteor shower reaches its peak. Tue, 14 Dec 2021 (865 days ago) in Gemini

187.

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 (864 days ago) in Orion

188.

The Orion Nebula is well placed The Orion Nebula (M42; mag 4.0) culminates at around midnight local time. Wed, 15 Dec 2021 (864 days ago) in Orion

189.

Comae Berenicid meteor shower 2021 The Comae Berenicid meteor shower reaches its peak. Wed, 15 Dec 2021 (863 days ago) in Leo

190.

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 (862 days ago) in Taurus

191.

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 (861 days ago) in Taurus

192.

Full Moon The Moon reaches full phase and is visible for much of the night. Sat, 18 Dec 2021 at 23:35 EDT (860 days ago) in Taurus

193.

December Leonis Minorid meteor shower 2021 The December Leonis Minorid meteor shower reaches its peak. Sun, 19 Dec 2021 (860 days ago) in Leo Minor

194.

December solstice 21 December will be the shortest day of 2021 in the northern hemisphere. Tue, 21 Dec 2021 at 10:53 EDT (858 days ago) in Sagittarius

195.

Conjunction of Venus and Pluto Venus and Pluto share the same right ascension, at a separation of 2°09'. Tue, 21 Dec 2021 at 22:05 EDT (858 days ago) in Sagittarius

196.

Ursid meteor shower 2021 The Ursid meteor shower reaches its peak. Wed, 22 Dec 2021 (857 days ago) in Ursa Minor

197.

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 (853 days ago) in Virgo

198.

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 (851 days ago) in Monoceros

199.

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 (851 days ago) in Sagittarius

200.

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 (850 days ago) in Monoceros