21.

Mercury at greatest elongation west Mercury is bright and well placed in the dawn sky. Thu, 09 May 2024 at 15:43 EDT (11 days ago) in Pisces

22.

Lunar occultation of Beta Tauri The Moon will pass in front of Beta Tauri (Elnath), creating a lunar occultation visible from Sub-Saharan Africa. Fri, 10 May 2024 at 10:43 EDT (10 days ago) in Taurus

23.

Messier 5 is well placed The globular cluster M5 (NGC 5904; mag 5.7) in Serpens culminates at around midnight local time. Sat, 11 May 2024 (9 days ago) in Serpens Caput

24.

Uranus at solar conjunction Uranus is unobservable as it passes around the far side of the Sun – marking the end of one apparition and the beginning of the next. Mon, 13 May 2024 at 05:04 EDT (7 days ago) in Aries

25.

Conjunction of Mercury and Eris Mercury and Eris share the same right ascension, at a separation of 8°07'. Tue, 14 May 2024 at 05:08 EDT (6 days ago) in Cetus

26.

Mercury at highest altitude in morning sky Mercury is bright and well placed in the dawn sky. Tue, 14 May 2024 (6 days ago) in Pisces

27.

Mercury at dichotomy Mercury reaches half phase in the dawn sky. Tue, 14 May 2024 at 19:04 EDT (6 days ago) in Pisces

28.

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, 15 May 2024 at 07:48 EDT (5 days ago) in Leo

29.

Asteroid 2 Pallas at opposition Asteroid 2 Pallas makes closest approach to the Earth. Fri, 17 May 2024 at 03:10 EDT (3 days ago) in Hercules

30.

The Moon at apogee The Moon recedes to its orbit's furthest point from the Earth, making it appear fractionally smaller than at other times of the month. Fri, 17 May 2024 at 14:58 EDT (3 days ago) in Leo

31.

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. Sat, 18 May 2024 at 14:34 EDT (2 days ago) in Taurus

32.

Comet 46P/Wirtanen passes perihelion Comet 46P/Wirtanen makes its closest approach to the Sun. Sun, 19 May 2024 (Today) in Taurus

33.

Jupiter at apogee Jupiter reaches its furthest point from the Earth, as it passes around the far side of the Sun. Mon, 20 May 2024 at 21:40 EDT (19 hours away) in Taurus

34.

Full Moon The Moon reaches full phase and is visible for much of the night. Thu, 23 May 2024 at 09:53 EDT (3 days away) in Scorpius

35.

Lunar occultation of Antares The Moon will pass in front of Antares (Alpha Scorpii), creating a lunar occultation visible from the Americas, Western Africa, Middle Africa, Bonaire, Saint Eustatius and Saba, Grenada and Navassa Island. Thu, 23 May 2024 at 23:17 EDT (3 days away) in Scorpius

36.

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, 24 May 2024 at 19:46 EDT (4 days away) in Ophiuchus

37.

Messier 4 is well placed The globular cluster M4 (NGC 6121; mag 5.4) in Scorpius culminates at around midnight local time. Tue, 28 May 2024 (8 days away) in Scorpius

38.

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, 30 May 2024 at 13:13 EDT (10 days away) in Aquarius

39.

Conjunction of Mercury and Uranus Mercury and Uranus share the same right ascension, at a separation of 1°21'. Thu, 30 May 2024 at 21:24 EDT (10 days away) in Taurus

40.

Conjunction of the Moon and Saturn The Moon and Saturn share the same right ascension, at a separation of 22'. Fri, 31 May 2024 at 04:08 EDT (11 days away) in Aquarius