821.

Mars at perigee Mars reaches its closest point to the Earth – marking the best time to observe it in 1970. Mon, 30 May 2016 at 17:29 EDT (2,970 days ago) in Libra

822.

Asteroid 7 Iris at opposition Asteroid 7 Iris makes closest approach to the Earth. Sun, 29 May 2016 at 15:10 EDT (2,971 days ago) in Ophiuchus

823.

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. Sun, 29 May 2016 at 08:12 EDT (2,971 days ago) in Aquarius

824.

Messier 4 is well placed The globular cluster M4 (NGC 6121; mag 5.4) in Scorpius culminates at around midnight local time. Sat, 28 May 2016 (2,972 days ago) in Scorpius

825.

Supernova SN2016coj discovered A new supernova has been discovered in NGC 4125. Fri, 27 May 2016 (2,972 days ago)

826.

Supernova SN2016coi discovered A new supernova has been discovered in UGC 11868. Thu, 26 May 2016 (2,973 days ago)

827.

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. Mon, 23 May 2016 at 09:42 EDT (2,977 days ago) in Ophiuchus

828.

Close approach of the Moon and Saturn The Moon and Saturn pass close to each other. Sun, 22 May 2016 at 18:16 EDT (2,978 days ago) in Ophiuchus

829.

Conjunction of the Moon and Saturn The Moon and Saturn share the same right ascension, at a separation of 3°12'. Sun, 22 May 2016 at 17:34 EDT (2,978 days ago) in Ophiuchus

830.

Mars at opposition Mars lies in the opposite direction to the Sun in the sky, making it closer, brighter and larger than at other times. It is also optimally positioned to be observable for much of the night. Sun, 22 May 2016 at 07:10 EDT (2,978 days ago) in Scorpius

831.

Close approach of the Moon and Mars The Moon and Mars pass close to each other. Sat, 21 May 2016 at 18:22 EDT (2,979 days ago) in Scorpius

832.

Full Moon The Moon reaches full phase and is visible for much of the night. Sat, 21 May 2016 at 17:14 EDT (2,979 days ago) in Libra

833.

Conjunction of the Moon and Mars The Moon and Mars share the same right ascension, at a separation of 6°01'. Sat, 21 May 2016 at 16:20 EDT (2,979 days ago) in Scorpius

834.

Mercury at aphelion Mercury passes the furthest point along its orbit from the Sun. Thu, 19 May 2016 at 12:47 EDT (2,981 days ago) in Aries

835.

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. Wed, 18 May 2016 at 18:06 EDT (2,982 days ago) in Virgo

836.

Conjunction of the Moon and Jupiter The Moon and Jupiter share the same right ascension, at a separation of 1°59'. Sun, 15 May 2016 at 05:32 EDT (2,985 days ago) in Leo

837.

Close approach of the Moon and Jupiter The Moon and Jupiter pass close to each other. Sun, 15 May 2016 at 04:21 EDT (2,985 days ago) in Leo

838.

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. Fri, 13 May 2016 at 13:02 EDT (2,987 days ago) in Leo

839.

Messier 5 is well placed The globular cluster M5 (NGC 5904; mag 5.7) in Serpens culminates at around midnight local time. Wed, 11 May 2016 (2,989 days ago) in Serpens Caput

840.

Mercury at inferior solar conjunction Mercury passes around the near side of the Sun. Mon, 09 May 2016 at 11:06 EDT (2,991 days ago) in Aries