1.

Conjunction of Venus and Pluto Venus and Pluto share the same right ascension, at a separation of 52'. Sun, 01 Jan 2023 at 10:17 EDT (506 days ago) in Sagittarius

2.

Close approach of the Moon and Uranus The Moon and Uranus pass close to each other. Sun, 01 Jan 2023 at 16:45 EDT (506 days ago) in Aries

3.

Lunar occultation of Uranus The Moon will pass in front of Uranus, creating a lunar occultation visible from countries and territories including Greenland, Russia, Canada and Sweden amongst others. Sun, 01 Jan 2023 at 16:45 EDT (506 days ago) in Aries

4.

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. Mon, 02 Jan 2023 (505 days ago) in Canis Major

5.

Conjunction of the Moon and Mars The Moon and Mars share the same right ascension, at a separation of 32'. Tue, 03 Jan 2023 at 14:36 EDT (504 days ago) in Taurus

6.

Close approach of the Moon and Mars The Moon and Mars pass close to each other. Tue, 03 Jan 2023 at 14:51 EDT (504 days ago) in Taurus

7.

Lunar occultation of Mars The Moon will pass in front of Mars, creating a lunar occultation visible from Africa, Maldives and British Indian Ocean Territory. Tue, 03 Jan 2023 at 14:51 EDT (504 days ago) in Taurus

8.

Quadrantid meteor shower 2023 The Quadrantid meteor shower reaches its peak. Tue, 03 Jan 2023 (503 days ago) in Bootes

9.

The Earth at perihelion The Earth reaches its closest point to the Sun. Wed, 04 Jan 2023 at 11:17 EDT (503 days ago) in Pisces

10.

Full Moon The Moon reaches full phase and is visible for much of the night. Fri, 06 Jan 2023 at 18:07 EDT (501 days ago) in Gemini

11.

Mercury at inferior solar conjunction Mercury passes around the near side of the Sun. Sat, 07 Jan 2023 at 07:53 EDT (500 days ago) in Sagittarius

12.

Comet C/2022 E3 (ZTF) passes perihelion Comet C/2022 E3 (ZTF) makes its closest approach to the Sun. Thu, 12 Jan 2023 (495 days ago)

13.

Mars ends retrograde motion Mars returns to its usual eastward motion after opposition. Thu, 12 Jan 2023 at 15:54 EDT (495 days ago) in Taurus

14.

Comet C/2022 U2 (ATLAS) passes perihelion Comet C/2022 U2 (ATLAS) makes its closest approach to the Sun. Sat, 14 Jan 2023 (493 days ago) in Cassiopeia

15.

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, 14 Jan 2023 at 21:10 EDT (493 days ago) in Virgo

16.

The cluster Messier 47 is well placed The open star cluster M47 (NGC 2422; mag 4.4) in Puppis culminates at around midnight local time. Sun, 15 Jan 2023 (492 days ago) in Puppis

17.

NGC 2403 is well placed NGC 2403 (mag 8.9), a spiral galaxy in Camelopardalis culminates at around midnight local time. Sun, 15 Jan 2023 (492 days ago) in Camelopardalis

18.

Asteroid 2 Pallas at opposition Asteroid 2 Pallas makes closest approach to the Earth. Sun, 15 Jan 2023 at 23:46 EDT (491 days ago) in Canis Major

19.

Lunar occultation of Delta Scorpii The Moon will pass in front of Delta Scorpii (Dschubba), creating a lunar occultation visible from Asia, Christmas Island, Spratly Islands and Paracel Islands. Tue, 17 Jan 2023 at 17:29 EDT (490 days ago) in Scorpius

20.

The cluster NGC 2451 is well placed The open star cluster NGC 2451 (mag 2.8) in Puppis culminates at around midnight local time. Tue, 17 Jan 2023 (490 days ago) in Puppis