1.

December Leonis Minorid meteor shower 2018 The December Leonis Minorid meteor shower reaches its peak. Thu, 20 Dec 2018 (1,965 days ago) in Leo Minor

2.

Conjunction of Jupiter and Mercury Jupiter and Mercury share the same right ascension, at a separation of 52'. Fri, 21 Dec 2018 at 09:40 EDT (1,964 days ago) in Ophiuchus

3.

December solstice 21 December will be the shortest day of 2018 in the northern hemisphere. Fri, 21 Dec 2018 at 17:16 EDT (1,964 days ago) in Sagittarius

4.

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. Fri, 21 Dec 2018 at 21:21 EDT (1,964 days ago) in Taurus

5.

Full Moon The Moon reaches full phase and is visible for much of the night. Sat, 22 Dec 2018 at 12:48 EDT (1,963 days ago) in Orion

6.

Ursid meteor shower 2018 The Ursid meteor shower reaches its peak. Sat, 22 Dec 2018 (1,963 days ago) in Ursa Minor

7.

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. Mon, 24 Dec 2018 at 04:49 EDT (1,961 days ago) in Gemini

8.

Close approach of the Moon and M44 The Moon and M44 pass close to each other. Tue, 25 Dec 2018 at 00:17 EDT (1,960 days ago) in Cancer

9.

Venus at perihelion Venus passes its orbit's closest point to the Sun. Wed, 26 Dec 2018 at 08:33 EDT (1,959 days ago) in Libra

10.

The cluster NGC 2232 is well placed The open star cluster NGC 2232 (mag 4.2) in Monoceros culminates at around midnight local time. Fri, 28 Dec 2018 (1,957 days ago) in Monoceros

11.

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. Sat, 29 Dec 2018 at 04:34 EDT (1,956 days ago) in Virgo

12.

Asteroid 6 Hebe at opposition Asteroid 6 Hebe makes closest approach to the Earth. Sat, 29 Dec 2018 at 11:46 EDT (1,956 days ago) in Monoceros

13.

Conjunction of Venus and Ceres Venus and Ceres share the same right ascension, at a separation of 3°02'. Sat, 29 Dec 2018 at 14:39 EDT (1,956 days ago) in Libra

14.

The Rosette Nebula is well placed The Rosette Nebula (C49; mag 9.0) in Monoceros culminates at around midnight local time. Sat, 29 Dec 2018 (1,956 days ago) in Monoceros

15.

Conjunction of the Moon and Venus The Moon and Venus share the same right ascension, at a separation of 1°16'. Tue, 01 Jan 2019 at 16:48 EDT (1,953 days ago) in Libra

16.

Close approach of the Moon and Venus The Moon and Venus pass close to each other. Tue, 01 Jan 2019 at 17:33 EDT (1,953 days ago) in Libra

17.

Saturn at solar conjunction Saturn is unobservable as it passes around the far side of the Sun – marking the end of one apparition and the beginning of the next. Wed, 02 Jan 2019 at 00:40 EDT (1,952 days ago) in Sagittarius

18.

The cluster Messier 41 is well placed The open star cluster M41 (NGC 2287; mag 4.5) in Canis Major culminates at around midnight local time. Wed, 02 Jan 2019 (1,952 days ago) in Canis Major

19.

The Earth at perihelion The Earth reaches its closest point to the Sun. Thu, 03 Jan 2019 at 00:19 EDT (1,951 days ago) in Pisces

20.

Conjunction of the Moon and Jupiter The Moon and Jupiter share the same right ascension, at a separation of 3°07'. Thu, 03 Jan 2019 at 02:35 EDT (1,951 days ago) in Ophiuchus