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 (1,646 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 (1,645 days ago) in Pisces

3.

Quadrantid meteor shower 2021 The Quadrantid meteor shower reaches its peak. Sun, 03 Jan 2021 (1,644 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 (1,641 days ago) in Virgo

5.

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, 09 Jan 2021 at 07:36 PDT (1,638 days ago) in Scorpius

6.

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 (1,638 days ago) in Scorpius

7.

Conjunction of Mercury and Saturn Mercury and Saturn share the same right ascension, at a separation of 1°40'. Sat, 09 Jan 2021 at 13:18 PDT (1,638 days ago) in Capricornus

8.

Conjunction of Jupiter and Mercury Jupiter and Mercury share the same right ascension, at a separation of 1°28'. Mon, 11 Jan 2021 at 03:09 PDT (1,636 days ago) in Capricornus

9.

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 (1,636 days ago) in Aquarius

10.

Conjunction of the Moon and Venus The Moon and Venus share the same right ascension, at a separation of 1°29'. Mon, 11 Jan 2021 at 12:10 PDT (1,636 days ago) in Sagittarius

11.

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. Tue, 12 Jan 2021 at 15:50 PDT (1,635 days ago) in Sagittarius

12.

New Moon The Moon disappears into the Sun's glare for a few days. Tue, 12 Jan 2021 at 21:01 PDT (1,635 days ago) in Sagittarius

13.

Conjunction of the Moon and Mercury The Moon and Mercury share the same right ascension, at a separation of 2°19'. Thu, 14 Jan 2021 at 00:14 PDT (1,633 days ago) in Capricornus

14.

Uranus ends retrograde motion Uranus returns to its usual eastward motion after opposition. Thu, 14 Jan 2021 at 01:12 PDT (1,633 days ago) in Aries

15.

134340 Pluto at solar conjunction 134340 Pluto 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, 14 Jan 2021 at 06:36 PDT (1,633 days ago) in Sagittarius

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. Thu, 14 Jan 2021 (1,633 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. Thu, 14 Jan 2021 (1,633 days ago) in Camelopardalis

18.

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 (1,631 days ago) in Puppis

19.

γ-Ursae Minorid meteor shower 2021 The γ-Ursae Minorid meteor shower reaches its peak. Mon, 18 Jan 2021 (1,628 days ago) in Ursa Minor

20.

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 (1,627 days ago) in Pisces