581.

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. Tue, 08 Aug 2023 at 06:28 EDT (344 days ago) in Aries

582.

Mercury at dichotomy Mercury reaches half phase in the evening sky. Wed, 09 Aug 2023 at 07:19 EDT (343 days ago) in Leo

583.

Close approach of the Moon and M45 The Moon and M45 pass close to each other. Wed, 09 Aug 2023 at 09:52 EDT (343 days ago) in Taurus

584.

Mercury at greatest elongation east Mercury is bright and well placed in the evening sky. Wed, 09 Aug 2023 at 16:30 EDT (343 days ago) in Leo

585.

Asteroid 10 Hygiea at opposition Asteroid 10 Hygiea makes closest approach to the Earth. Thu, 10 Aug 2023 at 05:34 EDT (342 days ago) in Aquarius

586.

Mercury at aphelion Mercury passes the furthest point along its orbit from the Sun. Thu, 10 Aug 2023 at 14:39 EDT (342 days ago) in Leo

587.

Perseid meteor shower 2023 The Perseid meteor shower reaches its peak. Sun, 13 Aug 2023 (339 days ago) in Perseus

588.

Venus at inferior solar conjunction Venus passes around the near side of the Sun. Sun, 13 Aug 2023 at 07:10 EDT (339 days ago) in Cancer

589.

Messier 15 is well placed The globular cluster M15 (NGC 7078; mag 6.3) in Pegasus culminates at around midnight local time. Mon, 14 Aug 2023 (338 days ago) in Pegasus

590.

Messier 2 is well placed The globular cluster M2 (NGC 7089; mag 6.6) in Aquarius culminates at around midnight local time. Tue, 15 Aug 2023 (337 days ago) in Aquarius

591.

New Moon The Moon disappears into the Sun's glare for a few days. Wed, 16 Aug 2023 at 05:39 EDT (336 days ago) in Leo

592.

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, 16 Aug 2023 at 07:54 EDT (336 days ago) in Leo

593.

Comet C/2023 E1 (ATLAS) passes perigee Comet C/2023 E1 (ATLAS) makes its closest approach to the Earth. Thu, 17 Aug 2023 (335 days ago) in Cygnus

594.

The Moon at perihelion The Moon passes its orbit's closest point to the Sun, which happens each month around the time of new moon. Fri, 18 Aug 2023 at 04:41 EDT (334 days ago) in Leo

595.

Conjunction of the Moon and Mercury The Moon and Mercury share the same right ascension, at a separation of 6°56'. Fri, 18 Aug 2023 at 07:26 EDT (334 days ago) in Leo

596.

κ-Cygnid meteor shower 2023 The κ-Cygnid meteor shower reaches its peak. Fri, 18 Aug 2023 (334 days ago) in Draco

597.

Conjunction of the Moon and Mars The Moon and Mars share the same right ascension, at a separation of 2°10'. Fri, 18 Aug 2023 at 19:07 EDT (334 days ago) in Virgo

598.

Close approach of the Moon and Mars The Moon and Mars pass close to each other. Fri, 18 Aug 2023 at 21:17 EDT (334 days ago) in Virgo

599.

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. Thu, 24 Aug 2023 at 05:57 EDT (328 days ago) in Scorpius

600.

Lunar occultation of Delta Scorpii The Moon will pass in front of Delta Scorpii (Dschubba), creating a lunar occultation visible from Antarctica. Thu, 24 Aug 2023 at 09:16 EDT (328 days ago) in Scorpius