1.

Comet C/2021 A2 (NEOWISE) passes perihelion Comet C/2021 A2 (NEOWISE) makes its closest approach to the Sun. Fri, 22 Jan 2021 (1,622 days ago) in Vela

2.

The cluster NGC 2547 is well placed The open star cluster NGC 2547 (mag 4.7) in Vela culminates at around midnight local time. Sat, 23 Jan 2021 (1,621 days ago) in Vela

3.

Mercury at greatest elongation east Mercury is bright and well placed in the evening sky. Sat, 23 Jan 2021 at 18:10 PDT (1,621 days ago) in Capricornus

4.

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. Sat, 23 Jan 2021 at 18:51 PDT (1,621 days ago) in Capricornus

5.

Asteroid 14 Irene at opposition Asteroid 14 Irene makes closest approach to the Earth. Sun, 24 Jan 2021 at 13:34 PDT (1,620 days ago) in Cancer

6.

Mercury at highest altitude in evening sky Mercury is bright and well placed in the evening sky. Sun, 24 Jan 2021 (1,619 days ago) in Capricornus

7.

Mercury at dichotomy Mercury reaches half phase in the evening sky. Sun, 24 Jan 2021 at 23:45 PDT (1,619 days ago) in Capricornus

8.

Jupiter at apogee Jupiter reaches its furthest point from the Earth, as it passes around the far side of the Sun. Wed, 27 Jan 2021 at 18:16 PDT (1,617 days ago) in Capricornus

9.

Full Moon The Moon reaches full phase and is visible for much of the night. Thu, 28 Jan 2021 at 11:16 PDT (1,616 days ago) in Cancer

10.

Conjunction of Venus and Pluto Venus and Pluto share the same right ascension, at a separation of 44'. Thu, 28 Jan 2021 at 11:18 PDT (1,616 days ago) in Sagittarius

11.

Jupiter at solar conjunction Jupiter is unobservable as it passes around the far side of the Sun – marking the end of one apparition and the beginning of the next. Thu, 28 Jan 2021 at 17:28 PDT (1,616 days ago) in Capricornus

12.

Mercury at perihelion Mercury passes its orbit's closest point to the Sun. Thu, 28 Jan 2021 at 18:03 PDT (1,616 days ago) in Capricornus

13.

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, 29 Jan 2021 at 08:27 PDT (1,615 days ago) in Leo

14.

The Beehive cluster is well placed The Beehive open star cluster (M44, NGC 2632, also known as Praesepe; mag 3.1) culminates at around midnight local time. Sat, 30 Jan 2021 (1,614 days ago) in Cancer

15.

The Omicron Velorum cluster is well placed The Omicron Velorum open star cluster (IC 2391; mag 2.5) in Vela culminates at around midnight local time. Sun, 31 Jan 2021 (1,613 days ago) in Vela

16.

The cluster IC 2395 is well placed The open star cluster IC 2395 (mag 4.0) in Vela culminates at around midnight local time. Sun, 31 Jan 2021 (1,613 days ago) in Vela

17.

Asteroid 18 Melpomene at opposition Asteroid 18 Melpomene makes closest approach to the Earth. Tue, 02 Feb 2021 at 01:34 PDT (1,611 days ago) in Cancer

18.

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. Wed, 03 Feb 2021 at 11:02 PDT (1,610 days ago) in Virgo

19.

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. Thu, 04 Feb 2021 at 09:37 PDT (1,609 days ago) in Libra

20.

Lunar occultation of Beta1 Scorpii The Moon will pass in front of Beta1 Scorpii (Acrab), creating a lunar occultation visible from Asia and Paracel Islands. Fri, 05 Feb 2021 at 15:16 PDT (1,608 days ago) in Scorpius