641.

Mars at aphelion Mars passes the furthest point along its orbit from the Sun. Tue, 30 May 2023 at 15:30 EDT (443 days ago) in Cancer

642.

Close approach of Mars and M44 Mars and M44 pass close to each other. Fri, 02 Jun 2023 at 19:06 EDT (440 days ago) in Cancer

643.

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. Fri, 02 Jun 2023 (440 days ago) in Hercules

644.

Lunar occultation of Delta Scorpii The Moon will pass in front of Delta Scorpii (Dschubba), creating a lunar occultation visible from countries and territories including Antarctica, Australia, Chile and New Zealand amongst others. Sat, 03 Jun 2023 at 05:56 EDT (439 days ago) in Scorpius

645.

Messier 12 is well placed The globular cluster M12 (NGC 6218; mag 6.1) in Ophiuchus culminates at around midnight local time. Sat, 03 Jun 2023 (439 days ago) in Ophiuchus

646.

Venus at dichotomy Venus reaches half phase in the evening sky. Sat, 03 Jun 2023 at 22:56 EDT (439 days ago) in Cancer

647.

Full Moon The Moon reaches full phase and is visible for much of the night. Sat, 03 Jun 2023 at 23:41 EDT (439 days ago) in Scorpius

648.

Conjunction of Mercury and Uranus Mercury and Uranus share the same right ascension, at a separation of 2°54'. Sun, 04 Jun 2023 at 00:34 EDT (438 days ago) in Aries

649.

Mercury at dichotomy Mercury reaches half phase in the dawn sky. Sun, 04 Jun 2023 at 02:02 EDT (438 days ago) in Aries

650.

Venus at greatest elongation east Venus is bright and well placed in the evening sky. Sun, 04 Jun 2023 at 12:11 EDT (438 days ago) in Cancer

651.

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. Sun, 04 Jun 2023 at 21:58 EDT (438 days ago) in Ophiuchus

652.

Mercury at highest altitude in morning sky Mercury is bright and well placed in the dawn sky. Mon, 05 Jun 2023 (437 days ago) in Aries

653.

Asteroid 11 Parthenope at opposition Asteroid 11 Parthenope makes closest approach to the Earth. Tue, 06 Jun 2023 at 07:58 EDT (436 days ago) in Ophiuchus

654.

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, 06 Jun 2023 at 19:05 EDT (436 days ago) in Sagittarius

655.

Messier 10 is well placed The globular cluster M10 (NGC 6254; mag 6.6) in Ophiuchus culminates at around midnight local time. Tue, 06 Jun 2023 (436 days ago) in Ophiuchus

656.

Messier 62 is well placed The globular cluster M62 (NGC 6266; mag 6.4) in Ophiuchus culminates at around midnight local time. Wed, 07 Jun 2023 (435 days ago) in Ophiuchus

657.

Conjunction of the Moon and Saturn The Moon and Saturn share the same right ascension, at a separation of 2°58'. Fri, 09 Jun 2023 at 16:22 EDT (433 days ago) in Aquarius

658.

Close approach of the Moon and Saturn The Moon and Saturn pass close to each other. Fri, 09 Jun 2023 at 18:29 EDT (433 days ago) in Aquarius

659.

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. Sat, 10 Jun 2023 at 15:31 EDT (432 days ago) in Aquarius

660.

Daytime Arietid meteor shower 2023 The Daytime Arietid meteor shower reaches its peak. Sat, 10 Jun 2023 (431 days ago) in Aries