521.

Conjunction of the Moon and Saturn The Moon and Saturn share the same right ascension, at a separation of 31'. Wed, 22 May 2019 at 18:13 EDT (1,912 days ago) in Sagittarius

522.

Mercury at superior solar conjunction Mercury passes around the far side of the Sun. Tue, 21 May 2019 at 09:13 EDT (1,913 days ago) in Taurus

523.

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, 20 May 2019 at 18:19 EDT (1,914 days ago) in Ophiuchus

524.

Close approach of the Moon and Jupiter The Moon and Jupiter pass close to each other. Mon, 20 May 2019 at 13:18 EDT (1,914 days ago) in Ophiuchus

525.

Conjunction of the Moon and Jupiter The Moon and Jupiter share the same right ascension, at a separation of 1°41'. Mon, 20 May 2019 at 12:52 EDT (1,914 days ago) in Ophiuchus

526.

Asteroid 20 Massalia at opposition Asteroid 20 Massalia makes closest approach to the Earth. Mon, 20 May 2019 at 03:10 EDT (1,914 days ago) in Libra

527.

Full Moon The Moon reaches full phase and is visible for much of the night. Sat, 18 May 2019 at 17:11 EDT (1,916 days ago) in Libra

528.

Conjunction of Venus and Uranus Venus and Uranus share the same right ascension, at a separation of 1°09'. Sat, 18 May 2019 at 04:12 EDT (1,916 days ago) in Aries

529.

Asteroid 11 Parthenope at opposition Asteroid 11 Parthenope makes closest approach to the Earth. Tue, 14 May 2019 at 07:58 EDT (1,920 days ago) in Libra

530.

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. Mon, 13 May 2019 at 17:52 EDT (1,921 days ago) in Leo

531.

Supernova SN2019fck discovered A new supernova has been discovered in NGC 5243. Sun, 12 May 2019 (1,921 days ago)

532.

Messier 5 is well placed The globular cluster M5 (NGC 5904; mag 5.7) in Serpens culminates at around midnight local time. Sun, 12 May 2019 (1,922 days ago) in Serpens Caput

533.

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. Sat, 11 May 2019 at 21:12 EDT (1,923 days ago) in Leo

534.

Close approach of the Moon and M44 The Moon and M44 pass close to each other. Fri, 10 May 2019 at 22:14 EDT (1,924 days ago) in Cancer

535.

η-Lyrid meteor shower 2019 The η-Lyrid meteor shower reaches its peak. Wed, 08 May 2019 (1,925 days ago) in Lyra

536.

Conjunction of Mercury and Uranus Mercury and Uranus share the same right ascension, at a separation of 1°22'. Wed, 08 May 2019 at 04:12 EDT (1,926 days ago) in Aries

537.

Close approach of the Moon and Mars The Moon and Mars pass close to each other. Tue, 07 May 2019 at 20:20 EDT (1,927 days ago) in Taurus

538.

Conjunction of the Moon and Mars The Moon and Mars share the same right ascension, at a separation of 3°14'. Tue, 07 May 2019 at 19:34 EDT (1,927 days ago) in Taurus

539.

η-Aquariid meteor shower 2019 The η-Aquariid meteor shower reaches its peak. Mon, 06 May 2019 (1,928 days ago) in Aquarius

540.

New Moon The Moon disappears into the Sun's glare for a few days. Sat, 04 May 2019 at 18:46 EDT (1,930 days ago) in Aries