121.

The Orion Nebula is well placed The Orion Nebula (M42; mag 4.0) culminates at around midnight local time. Wed, 15 Dec 2021 (860 days ago) in Orion

122.

Comae Berenicid meteor shower 2021 The Comae Berenicid meteor shower reaches its peak. Wed, 15 Dec 2021 (859 days ago) in Leo

123.

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 (858 days ago) in Taurus

124.

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 (857 days ago) in Taurus

125.

Full Moon The Moon reaches full phase and is visible for much of the night. Sat, 18 Dec 2021 at 23:35 EDT (856 days ago) in Taurus

126.

December Leonis Minorid meteor shower 2021 The December Leonis Minorid meteor shower reaches its peak. Sun, 19 Dec 2021 (856 days ago) in Leo Minor

127.

December solstice 21 December will be the shortest day of 2021 in the northern hemisphere. Tue, 21 Dec 2021 at 10:53 EDT (854 days ago) in Sagittarius

128.

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 (854 days ago) in Sagittarius

129.

Ursid meteor shower 2021 The Ursid meteor shower reaches its peak. Wed, 22 Dec 2021 (853 days ago) in Ursa Minor

130.

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 (849 days ago) in Virgo

131.

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 (847 days ago) in Monoceros

132.

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 (847 days ago) in Sagittarius

133.

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 (846 days ago) in Monoceros

134.

Conjunction of Mercury and Pluto Mercury and Pluto share the same right ascension, at a separation of 13'. Thu, 30 Dec 2021 at 09:26 EDT (845 days ago) in Sagittarius

135.

Close approach of the Moon and Mars The Moon and Mars pass close to each other. Fri, 31 Dec 2021 at 14:52 EDT (844 days ago) in Ophiuchus

136.

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 (844 days ago) in Ophiuchus

137.

Conjunction of the Moon and Mars The Moon and Mars share the same right ascension, at a separation of 56'. Fri, 31 Dec 2021 at 15:13 EDT (844 days ago) in Ophiuchus

138.

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, 01 Jan 2022 at 17:55 EDT (843 days ago) in Sagittarius

139.

New Moon The Moon disappears into the Sun's glare for a few days. Sun, 02 Jan 2022 at 13:34 EDT (842 days ago) in Sagittarius

140.

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. Sun, 02 Jan 2022 at 15:54 EDT (842 days ago) in Sagittarius