541.

Comet 58P/Jackson-Neujmin passes perihelion Comet 58P/Jackson-Neujmin makes its closest approach to the Sun. Wed, 27 May 2020 (1,489 days ago) in Pisces

542.

Messier 4 is well placed The globular cluster M4 (NGC 6121; mag 5.4) in Scorpius culminates at around midnight local time. Thu, 28 May 2020 (1,488 days ago) in Scorpius

543.

Mercury at dichotomy Mercury reaches half phase in the evening sky. Fri, 29 May 2020 at 12:50 EDT (1,487 days ago) in Gemini

544.

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, 29 May 2020 at 23:30 EDT (1,487 days ago) in Leo

545.

Supernova SN2020llx discovered A new supernova has been discovered in NGC 7140. Sat, 30 May 2020 (1,485 days ago)

546.

Conjunction of Mars and Ceres Mars and Ceres share the same right ascension, at a separation of 7°56'. Sun, 31 May 2020 at 16:51 EDT (1,485 days ago) in Aquarius

547.

Mercury at highest altitude in evening sky Mercury is bright and well placed in the evening sky. Mon, 01 Jun 2020 (1,484 days ago) in Gemini

548.

The Great Globular Cluster in Hercules is well placed The Great Globular Cluster in Hercules (M13, NGC 6205; mag 5.8) culminates at around midnight local time. Mon, 01 Jun 2020 (1,484 days ago) in Hercules

549.

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, 02 Jun 2020 at 23:38 EDT (1,483 days ago) in Libra

550.

Venus at inferior solar conjunction Venus passes around the near side of the Sun. Wed, 03 Jun 2020 at 13:38 EDT (1,482 days ago) in Taurus

551.

Messier 12 is well placed The globular cluster M12 (NGC 6218; mag 6.1) in Ophiuchus culminates at around midnight local time. Wed, 03 Jun 2020 (1,482 days ago) in Ophiuchus

552.

Mercury at greatest elongation east Mercury is bright and well placed in the evening sky. Thu, 04 Jun 2020 at 12:28 EDT (1,481 days ago) in Gemini

553.

Full Moon The Moon reaches full phase and is visible for much of the night. Fri, 05 Jun 2020 at 15:12 EDT (1,480 days ago) in Ophiuchus

554.

Penumbral lunar eclipse There will be an eclipse of the Moon, visible from Antarctica, Asia, Africa, Russia, Oceania and Europe. Fri, 05 Jun 2020 at 15:26 EDT (1,480 days ago) in Ophiuchus

555.

Messier 10 is well placed The globular cluster M10 (NGC 6254; mag 6.6) in Ophiuchus culminates at around midnight local time. Fri, 05 Jun 2020 (1,480 days ago) in Ophiuchus

556.

Messier 62 is well placed The globular cluster M62 (NGC 6266; mag 6.4) in Ophiuchus culminates at around midnight local time. Sat, 06 Jun 2020 (1,479 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. Sat, 06 Jun 2020 at 21:20 EDT (1,479 days ago) in Sagittarius

558.

Conjunction of the Moon and Jupiter The Moon and Jupiter share the same right ascension, at a separation of 2°11'. Mon, 08 Jun 2020 at 13:20 EDT (1,477 days ago) in Sagittarius

559.

Close approach of the Moon and Jupiter The Moon and Jupiter pass close to each other. Mon, 08 Jun 2020 at 13:45 EDT (1,477 days ago) in Sagittarius

560.

Conjunction of the Moon and Saturn The Moon and Saturn share the same right ascension, at a separation of 2°40'. Mon, 08 Jun 2020 at 22:12 EDT (1,477 days ago) in Capricornus