1.

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. Fri, 01 Jan 2021 (1,654 days ago) in Canis Major

2.

The Earth at perihelion The Earth reaches its closest point to the Sun. Sat, 02 Jan 2021 at 05:50 PDT (1,653 days ago) in Pisces

3.

Quadrantid meteor shower 2021 The Quadrantid meteor shower reaches its peak. Sun, 03 Jan 2021 (1,652 days ago) in Bootes

4.

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. Wed, 06 Jan 2021 at 01:37 PDT (1,649 days ago) in Virgo

5.

Lunar occultation of Beta1 Scorpii The Moon will pass in front of Beta1 Scorpii (Acrab), creating a lunar occultation visible from Hawaii and Midway Atoll. Sat, 09 Jan 2021 at 09:08 PDT (1,646 days ago) in Scorpius

6.

Conjunction of Neptune and Ceres Neptune and Ceres share the same right ascension, at a separation of 8°35'. Mon, 11 Jan 2021 at 10:33 PDT (1,644 days ago) in Aquarius

7.

Uranus ends retrograde motion Uranus returns to its usual eastward motion after opposition. Thu, 14 Jan 2021 at 01:12 PDT (1,641 days ago) in Aries

8.

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. Thu, 14 Jan 2021 (1,641 days ago) in Puppis

9.

The cluster NGC 2451 is well placed The open star cluster NGC 2451 (mag 2.8) in Puppis culminates at around midnight local time. Sat, 16 Jan 2021 (1,639 days ago) in Puppis

10.

γ-Ursae Minorid meteor shower 2021 The γ-Ursae Minorid meteor shower reaches its peak. Mon, 18 Jan 2021 (1,636 days ago) in Ursa Minor

11.

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. Wed, 20 Jan 2021 at 13:02 PDT (1,635 days ago) in Pisces

12.

Conjunction of the Moon and Mars The Moon and Mars share the same right ascension, at a separation of 5°03'. Wed, 20 Jan 2021 at 21:35 PDT (1,635 days ago) in Aries

13.

Close approach of the Moon, Mars and Uranus The Moon, Mars and Uranus pass close to one another. Thu, 21 Jan 2021 at 01:49 PDT (1,634 days ago) in Aries

14.

Asteroid 15 Eunomia at opposition Asteroid 15 Eunomia makes closest approach to the Earth. Thu, 21 Jan 2021 at 13:34 PDT (1,634 days ago) in Cancer

15.

Conjunction of Mars and Uranus Mars and Uranus share the same right ascension, at a separation of 1°43'. Thu, 21 Jan 2021 at 15:41 PDT (1,634 days ago) in Aries

16.

Mercury at greatest elongation east Mercury is bright and well placed in the evening sky. Sat, 23 Jan 2021 at 18:10 PDT (1,632 days ago) in Capricornus

17.

Asteroid 14 Irene at opposition Asteroid 14 Irene makes closest approach to the Earth. Sun, 24 Jan 2021 at 13:34 PDT (1,631 days ago) in Cancer

18.

Mercury at highest altitude in evening sky Mercury is bright and well placed in the evening sky. Sun, 24 Jan 2021 (1,630 days ago) in Capricornus

19.

Mercury at dichotomy Mercury reaches half phase in the evening sky. Sun, 24 Jan 2021 at 23:45 PDT (1,630 days ago) in Capricornus

20.

Full Moon The Moon reaches full phase and is visible for much of the night. Thu, 28 Jan 2021 at 11:16 PDT (1,627 days ago) in Cancer