521.

Close approach of Venus and M44 Venus and M44 pass close to each other. Tue, 13 Jun 2023 at 20:30 EDT (381 days ago) in Cancer

522.

Close approach of the Moon and Jupiter The Moon and Jupiter pass close to each other. Wed, 14 Jun 2023 at 01:26 EDT (380 days ago) in Aries

523.

Conjunction of the Moon and Jupiter The Moon and Jupiter share the same right ascension, at a separation of 1°30'. Wed, 14 Jun 2023 at 02:36 EDT (380 days ago) in Aries

524.

Conjunction of the Moon and Mercury The Moon and Mercury share the same right ascension, at a separation of 4°18'. Fri, 16 Jun 2023 at 16:40 EDT (378 days ago) in Taurus

525.

NGC 6388 is well placed The globular cluster NGC 6388 (mag 6.8) in Scorpius culminates at around midnight local time. Fri, 16 Jun 2023 (378 days ago) in Scorpius

526.

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. Sat, 17 Jun 2023 at 09:26 EDT (377 days ago) in Taurus

527.

Saturn enters retrograde motion Saturn reverses its direction of motion across the sky. Sat, 17 Jun 2023 at 12:51 EDT (377 days ago) in Aquarius

528.

The Butterfly cluster is well placed The Butterfly open star cluster (M6, NGC 6405; mag 4.2) in Scorpius culminates at around midnight local time. Sat, 17 Jun 2023 (377 days ago) in Scorpius

529.

NGC 6397 is well placed The globular cluster NGC 6397 (mag 5.6) in Ara culminates at around midnight local time. Sat, 17 Jun 2023 (377 days ago) in Ara

530.

New Moon The Moon disappears into the Sun's glare for a few days. Sun, 18 Jun 2023 at 00:38 EDT (376 days ago) in Taurus

531.

The cluster IC 4665 is well placed The open star cluster IC 4665 (mag 4.2) in Ophiuchus culminates at around midnight local time. Sun, 18 Jun 2023 (376 days ago) in Ophiuchus

532.

The Ptolemy cluster is well placed The Ptolemy Cluster (M7, NGC 6475; mag 3.3) in Scorpius culminates at around midnight local time. Tue, 20 Jun 2023 (374 days ago) in Scorpius

533.

June solstice 21 June will be the longest day of 2023 in the northern hemisphere. Wed, 21 Jun 2023 at 10:54 EDT (373 days ago) in Taurus

534.

Conjunction of the Moon and Venus The Moon and Venus share the same right ascension, at a separation of 3°41'. Wed, 21 Jun 2023 at 20:48 EDT (373 days ago) in Cancer

535.

Close approach of the Moon and Venus The Moon and Venus pass close to each other. Wed, 21 Jun 2023 at 23:13 EDT (373 days ago) in Cancer

536.

Conjunction of the Moon and Mars The Moon and Mars share the same right ascension, at a separation of 3°47'. Thu, 22 Jun 2023 at 06:10 EDT (372 days ago) in Leo

537.

Close approach of the Moon and Mars The Moon and Mars pass close to each other. Thu, 22 Jun 2023 at 08:54 EDT (372 days ago) in Leo

538.

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. Thu, 22 Jun 2023 at 14:30 EDT (372 days ago) in Leo

539.

The Lagoon Nebula is well placed The Lagoon Nebula (M8; mag 5.8) in Sagittarius culminates at around midnight local time. Fri, 23 Jun 2023 (371 days ago) in Sagittarius

540.

NGC 6541 is well placed The globular cluster NGC 6541 (mag 6.6) in Corona Australis culminates at around midnight local time. Sat, 24 Jun 2023 (370 days ago) in Corona Australis