121.

NGC 6397 is well placed The globular cluster NGC 6397 (mag 5.7) in Ara culminates at around midnight local time. Sat, 17 Jun 2023 (21 days away) in Ara

122.

New Moon The Moon disappears into the Sun's glare for a few days. Sun, 18 Jun 2023 at 00:38 EDT (22 days away) in Taurus

123.

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 (22 days away) in Ophiuchus

124.

The Ptolemy cluster is well placed The Ptolemy Cluster (M7, NGC 6475; mag 4.1) in Scorpius culminates at around midnight local time. Tue, 20 Jun 2023 (24 days away) in Scorpius

125.

June solstice 21 June will be the longest day of 2023 in the northern hemisphere. Wed, 21 Jun 2023 at 10:54 EDT (25 days away) in Taurus

126.

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 (25 days away) in Cancer

127.

Close approach of the Moon and Venus The Moon and Venus pass within 3°31' of each other. Wed, 21 Jun 2023 at 23:13 EDT (25 days away) in Cancer

128.

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 (26 days away) in Leo

129.

Close approach of the Moon and Mars The Moon and Mars pass within 3°34' of each other. Thu, 22 Jun 2023 at 08:54 EDT (26 days away) in Leo

130.

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 (26 days away) in Leo

131.

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 (27 days away) in Sagittarius

132.

NGC 6541 is well placed The globular cluster NGC 6541 (mag 6.3) in Corona Australis culminates at around midnight local time. Sat, 24 Jun 2023 (28 days away) in Corona Australis

133.

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. Mon, 26 Jun 2023 at 03:50 EDT (30 days away) in Virgo

134.

Mercury at perihelion Mercury passes its orbit's closest point to the Sun. Tue, 27 Jun 2023 at 15:17 EDT (31 days away) in Gemini

135.

June Bootid meteor shower 2023 The June Bootid meteor shower reaches its peak. Tue, 27 Jun 2023 (31 days away) in Bootes

136.

The cluster NGC 6633 is well placed The open star cluster NGC 6633 (mag 4.6) in Ophiuchus culminates at around midnight local time. Thu, 29 Jun 2023 (33 days away) in Ophiuchus

137.

Neptune enters retrograde motion Neptune reverses its direction of motion across the sky. Fri, 30 Jun 2023 at 15:28 EDT (34 days away) in Pisces

138.

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, French Southern Territories, South Georgia and the South Sandwich Islands and Heard Island and McDonald Islands amongst others. Fri, 30 Jun 2023 at 15:54 EDT (34 days away) in Scorpius

139.

Mercury at superior solar conjunction Mercury passes around the far side of the Sun. Sat, 01 Jul 2023 at 01:12 EDT (35 days away) in Gemini

140.

Close approach of Venus and Mars Venus and Mars pass within 3°33' of each other. Sat, 01 Jul 2023 at 03:09 EDT (35 days away) in Leo