21.

136199 Eris at solar conjunction 136199 Eris is unobservable as it passes around the far side of the Sun. Tue, 13 Apr 2021 at 22:55 EDT (1 hour ago) in Cetus

22.

The Moon at apogee The Moon appears small as it recedes to its furthest point from the Earth. Wed, 14 Apr 2021 at 13:45 EDT (13 hours away) in Taurus

23.

M51 is well placed The whirlpool galaxy (M51, NGC 5194; mag 9.0) is well placed in the sky. Wed, 14 Apr 2021 (Today) in Canes Venatici

24.

M83 is well placed The southern pinwheel galaxy (M83, NGC 5236; mag 8.2), a face-on spiral galaxy in Hydra is well placed in the sky. Fri, 16 Apr 2021 (2 days away) in Hydra

25.

Conjunction of the Moon and Mars The Moon and Mars share the same right ascension, at a separation of 0°07'. Sat, 17 Apr 2021 at 08:08 EDT (3 days away) in Taurus

26.

Close approach of the Moon and Mars The Moon and Mars pass within 0°07' of each other. Sat, 17 Apr 2021 at 08:10 EDT (3 days away) in Taurus

27.

Lunar occultation of Mars The Moon will pass in front of Mars, creating a lunar occultation visible from parts of Asia. Sat, 17 Apr 2021 at 08:10 EDT (3 days away) in Taurus

28.

M3 is well placed The globular cluster M3 (NGC 5272; mag 6.2) in Canes Venatici is well placed in the sky. Sat, 17 Apr 2021 (3 days away) in Canes Venatici

29.

136108 Haumea at opposition 136108 Haumea is well placed in the sky. Sat, 17 Apr 2021 at 20:11 EDT (3 days away) in Bootes

30.

Mercury at superior solar conjunction Mercury passes around the far side of the Sun. Sun, 18 Apr 2021 at 21:56 EDT (4 days away) in Aries

31.

Moon at First Quarter The Moon appears high in the sky at sunset and sets in the west at around midnight. Tue, 20 Apr 2021 at 02:59 EDT (6 days away) in Cancer

32.

Lyrid meteor shower 2021 The Lyrid meteor shower reaches its peak. Thu, 22 Apr 2021 (8 days away) in Hercules

33.

M101 is well placed The pinwheel galaxy (M101, NGC 5457; mag 8.3) is well placed in the sky. Thu, 22 Apr 2021 (8 days away) in Ursa Major

34.

π-Puppid meteor shower 2021 The π-Puppid meteor shower reaches its peak. Fri, 23 Apr 2021 (9 days away) in Puppis

35.

Mercury at perihelion Mercury reaches its closest point to the Sun. Mon, 26 Apr 2021 at 21:48 EDT (12 days away) in Aries

36.

Full Moon The Moon is visible for much of the night. Mon, 26 Apr 2021 at 23:31 EDT (12 days away) in Libra

37.

The Moon at perigee The Moon appears large as it makes its closest approach to the Earth. Tue, 27 Apr 2021 at 11:22 EDT (13 days away) in Libra

38.

Conjunction of Ceres and Eris Ceres and Eris share the same right ascension, at a separation of 4°54'. Wed, 28 Apr 2021 at 16:08 EDT (14 days away) in Cetus

39.

The Moon at aphelion The Moon reaches its furthest point from the Sun. Wed, 28 Apr 2021 at 23:32 EDT (14 days away) in Scorpius

40.

Uranus at solar conjunction Uranus is unobservable as it passes around the far side of the Sun. Fri, 30 Apr 2021 at 15:44 EDT (16 days away) in Aries