561.

Comet C/2021 T4 (Lemmon) passes perigee Comet C/2021 T4 (Lemmon) makes its closest approach to the Earth. Thu, 20 Jul 2023 (363 days ago) in Telescopium

562.

Comet C/2021 T4 (Lemmon) reaches peak brightness Comet C/2021 T4 (Lemmon) is forecast to reach the brightest point in its 2023 apparition. Thu, 20 Jul 2023 (363 days ago) in Telescopium

563.

Conjunction of the Moon and Mars The Moon and Mars share the same right ascension, at a separation of 3°16'. Fri, 21 Jul 2023 at 00:00 EDT (362 days ago) in Leo

564.

Close approach of the Moon and Mars The Moon and Mars pass close to each other. Fri, 21 Jul 2023 at 02:57 EDT (362 days ago) in Leo

565.

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. Tue, 25 Jul 2023 at 18:07 EDT (358 days ago) in Virgo

566.

Conjunction of Venus and Mercury Venus and Mercury share the same right ascension, at a separation of 5°17'. Wed, 26 Jul 2023 at 08:45 EDT (357 days ago) in Leo

567.

Lunar occultation of Delta Scorpii The Moon will pass in front of Delta Scorpii (Dschubba), creating a lunar occultation visible from Antarctica, Chile, Argentina and Falkland Islands. Fri, 28 Jul 2023 at 01:25 EDT (355 days ago) in Scorpius

568.

Piscis Austrinid meteor shower 2023 The Piscis Austrinid meteor shower reaches its peak. Sat, 29 Jul 2023 (354 days ago) in Piscis Austrinus

569.

Mercury at highest altitude in evening sky Mercury is bright and well placed in the evening sky. Sat, 29 Jul 2023 (354 days ago) in Leo

570.

Southern δ-Aquariid meteor shower 2023 The Southern δ-Aquariid meteor shower reaches its peak. Sun, 30 Jul 2023 (353 days ago) in Aquarius

571.

α-Capricornid meteor shower 2023 The α-Capricornid meteor shower reaches its peak. Sun, 30 Jul 2023 (353 days ago) in Capricornus

572.

Comet C/2021 T4 (Lemmon) passes perihelion Comet C/2021 T4 (Lemmon) makes its closest approach to the Sun. Mon, 31 Jul 2023 (352 days ago) in Norma

573.

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, 31 Jul 2023 at 15:26 EDT (352 days ago) in Sagittarius

574.

Full Moon The Moon reaches full phase and is visible for much of the night. Tue, 01 Aug 2023 at 14:31 EDT (351 days ago) in Capricornus

575.

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. Wed, 02 Aug 2023 at 01:52 EDT (350 days ago) in Capricornus

576.

Conjunction of the Moon and Saturn The Moon and Saturn share the same right ascension, at a separation of 2°28'. Thu, 03 Aug 2023 at 06:25 EDT (349 days ago) in Aquarius

577.

Close approach of the Moon and Saturn The Moon and Saturn pass close to each other. Thu, 03 Aug 2023 at 08:03 EDT (349 days ago) in Aquarius

578.

Venus at aphelion Venus passes the furthest point along its orbit from the Sun. Tue, 08 Aug 2023 at 02:37 EDT (344 days ago) in Leo

579.

Close approach of the Moon and Jupiter The Moon and Jupiter pass close to each other. Tue, 08 Aug 2023 at 03:45 EDT (344 days ago) in Aries

580.

Conjunction of the Moon and Jupiter The Moon and Jupiter share the same right ascension, at a separation of 2°52'. Tue, 08 Aug 2023 at 05:44 EDT (344 days ago) in Aries