21.

Conjunction of the Moon and Mercury The Moon and Mercury share the same right ascension, at a separation of 2°08'. Thu, 13 May 2021 at 10:58 PDT (1,079 days ago) in Taurus

22.

Mercury at highest altitude in evening sky Mercury is bright and well placed in the evening sky. Sat, 15 May 2021 (1,077 days ago) in Taurus

23.

Conjunction of the Moon and Mars The Moon and Mars share the same right ascension, at a separation of 1°28'. Sat, 15 May 2021 at 21:47 PDT (1,077 days ago) in Gemini

24.

Close approach of the Moon and Mars The Moon and Mars pass close to each other. Sat, 15 May 2021 at 21:51 PDT (1,077 days ago) in Gemini

25.

Mercury at greatest elongation east Mercury is bright and well placed in the evening sky. Mon, 17 May 2021 at 01:14 PDT (1,075 days ago) in Taurus

26.

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, 19 May 2021 at 12:13 PDT (1,073 days ago) in Leo

27.

Saturn enters retrograde motion Saturn reverses its direction of motion across the sky. Sun, 23 May 2021 at 02:36 PDT (1,069 days ago) in Capricornus

28.

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. Tue, 25 May 2021 at 18:49 PDT (1,067 days ago) in Libra

29.

Lunar occultation of Beta1 Scorpii The Moon will pass in front of Beta1 Scorpii (Acrab), creating a lunar occultation visible from countries and territories including Argentina, Chile, Uruguay and Brazil amongst others. Wed, 26 May 2021 at 01:05 PDT (1,066 days ago) in Scorpius

30.

Full Moon The Moon reaches full phase and is visible for much of the night. Wed, 26 May 2021 at 04:13 PDT (1,066 days ago) in Scorpius

31.

Total lunar eclipse There will be an eclipse of the Moon, visible from Antarctica, the Americas, Oceania, Eastern and Southeast Asia, south-eastern Russia and Alaska. Wed, 26 May 2021 at 04:18 PDT (1,066 days ago) in Scorpius

32.

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. Thu, 27 May 2021 at 12:46 PDT (1,065 days ago) in Ophiuchus

33.

Lunar occultation of Sigma Sagittarii The Moon will pass in front of Sigma Sagittarii (Nunki), creating a lunar occultation visible from Africa, Asia, Southern and Eastern Europe, Corsica and RAF Akrotiri. Fri, 28 May 2021 at 16:07 PDT (1,064 days ago) in Sagittarius

34.

Messier 4 is well placed The globular cluster M4 (NGC 6121; mag 5.4) in Scorpius culminates at around midnight local time. Fri, 28 May 2021 (1,064 days ago) in Scorpius

35.

Conjunction of Venus and Mercury Venus and Mercury share the same right ascension, at a separation of 25'. Fri, 28 May 2021 at 22:34 PDT (1,064 days ago) in Taurus

36.

Conjunction of the Moon and Saturn The Moon and Saturn share the same right ascension, at a separation of 4°10'. Sun, 30 May 2021 at 18:18 PDT (1,062 days ago) in Capricornus

37.

Close approach of the Moon and Saturn The Moon and Saturn pass close to each other. Sun, 30 May 2021 at 20:06 PDT (1,062 days ago) in Capricornus

38.

Conjunction of the Moon and Jupiter The Moon and Jupiter share the same right ascension, at a separation of 4°37'. Tue, 01 Jun 2021 at 02:00 PDT (1,060 days ago) in Aquarius

39.

Close approach of the Moon and Jupiter The Moon and Jupiter pass close to each other. Tue, 01 Jun 2021 at 04:56 PDT (1,060 days ago) in Aquarius

40.

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, 02 Jun 2021 at 00:25 PDT (1,059 days ago) in Aquarius