541.

η-Aquariid meteor shower 2019 The η-Aquariid meteor shower reaches its peak. Mon, 06 May 2019 (1,899 days ago) in Aquarius

542.

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 (1,898 days ago) in Taurus

543.

Close approach of the Moon and Mars The Moon and Mars pass close to each other. Tue, 07 May 2019 at 20:20 EDT (1,898 days ago) in Taurus

544.

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 (1,897 days ago) in Aries

545.

η-Lyrid meteor shower 2019 The η-Lyrid meteor shower reaches its peak. Wed, 08 May 2019 (1,896 days ago) in Lyra

546.

Close approach of the Moon and M44 The Moon and M44 pass close to each other. Fri, 10 May 2019 at 22:14 EDT (1,895 days ago) in Cancer

547.

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 (1,894 days ago) in Leo

548.

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 (1,893 days ago) in Serpens Caput

549.

Supernova SN2019fck discovered A new supernova has been discovered in NGC 5243. Sun, 12 May 2019 (1,892 days ago)

550.

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 (1,892 days ago) in Leo

551.

Asteroid 11 Parthenope at opposition Asteroid 11 Parthenope makes closest approach to the Earth. Tue, 14 May 2019 at 07:58 EDT (1,891 days ago) in Libra

552.

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 (1,887 days ago) in Aries

553.

Full Moon The Moon reaches full phase and is visible for much of the night. Sat, 18 May 2019 at 17:11 EDT (1,887 days ago) in Libra

554.

Asteroid 20 Massalia at opposition Asteroid 20 Massalia makes closest approach to the Earth. Mon, 20 May 2019 at 03:10 EDT (1,885 days ago) in Libra

555.

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 (1,885 days ago) in Ophiuchus

556.

Close approach of the Moon and Jupiter The Moon and Jupiter pass close to each other. Mon, 20 May 2019 at 13:18 EDT (1,885 days ago) in Ophiuchus

557.

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 (1,885 days ago) in Ophiuchus

558.

Mercury at superior solar conjunction Mercury passes around the far side of the Sun. Tue, 21 May 2019 at 09:13 EDT (1,884 days ago) in Taurus

559.

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 (1,883 days ago) in Sagittarius

560.

Close approach of the Moon and Saturn The Moon and Saturn pass close to each other. Wed, 22 May 2019 at 18:16 EDT (1,883 days ago) in Sagittarius