101.

Monocerotid meteor shower 2021 The Monocerotid meteor shower reaches its peak. Wed, 08 Dec 2021 (871 days ago) in Monoceros

102.

Conjunction of the Moon and Jupiter The Moon and Jupiter share the same right ascension, at a separation of 4°28'. Thu, 09 Dec 2021 at 01:10 EDT (871 days ago) in Capricornus

103.

Close approach of the Moon and Jupiter The Moon and Jupiter pass close to each other. Thu, 09 Dec 2021 at 03:49 EDT (871 days ago) in Capricornus

104.

Asteroid 44 Nysa at opposition Asteroid 44 Nysa makes closest approach to the Earth. Fri, 10 Dec 2021 at 04:34 EDT (870 days ago) in Taurus

105.

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 (870 days ago) in Aquarius

106.

σ-Hydrid meteor shower 2021 The σ-Hydrid meteor shower reaches its peak. Sat, 11 Dec 2021 (868 days ago) in Hydra

107.

Comet C/2021 A1 (Leonard) passes perigee Comet C/2021 A1 (Leonard) makes its closest approach to the Earth. Sun, 12 Dec 2021 (868 days ago) in Ophiuchus

108.

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 (868 days ago) in Dorado

109.

Conjunction of Venus and Pluto Venus and Pluto share the same right ascension, at a separation of 20'. Mon, 13 Dec 2021 at 01:48 EDT (867 days ago) in Sagittarius

110.

Geminid meteor shower 2021 The Geminid meteor shower reaches its peak. Tue, 14 Dec 2021 (866 days ago) in Gemini

111.

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 (865 days ago) in Orion

112.

The Orion Nebula is well placed The Orion Nebula (M42; mag 4.0) culminates at around midnight local time. Wed, 15 Dec 2021 (865 days ago) in Orion

113.

Comae Berenicid meteor shower 2021 The Comae Berenicid meteor shower reaches its peak. Wed, 15 Dec 2021 (864 days ago) in Leo

114.

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 (863 days ago) in Taurus

115.

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 (862 days ago) in Taurus

116.

Full Moon The Moon reaches full phase and is visible for much of the night. Sat, 18 Dec 2021 at 23:35 EDT (861 days ago) in Taurus

117.

December Leonis Minorid meteor shower 2021 The December Leonis Minorid meteor shower reaches its peak. Sun, 19 Dec 2021 (861 days ago) in Leo Minor

118.

December solstice 21 December will be the shortest day of 2021 in the northern hemisphere. Tue, 21 Dec 2021 at 10:53 EDT (859 days ago) in Sagittarius

119.

Conjunction of Venus and Pluto Venus and Pluto share the same right ascension, at a separation of 2°09'. Tue, 21 Dec 2021 at 21:55 EDT (859 days ago) in Sagittarius

120.

Ursid meteor shower 2021 The Ursid meteor shower reaches its peak. Wed, 22 Dec 2021 (858 days ago) in Ursa Minor