161.

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 (325 days ago) in Ophiuchus

162.

Mercury at highest altitude in morning sky Mercury is bright and well placed in the dawn sky. Mon, 05 Jun 2023 (324 days ago) in Aries

163.

Asteroid 11 Parthenope at opposition Asteroid 11 Parthenope makes closest approach to the Earth. Tue, 06 Jun 2023 at 07:58 EDT (323 days ago) in Ophiuchus

164.

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 (323 days ago) in Sagittarius

165.

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 (323 days ago) in Ophiuchus

166.

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 (322 days ago) in Ophiuchus

167.

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 (320 days ago) in Aquarius

168.

Close approach of the Moon and Saturn The Moon and Saturn pass close to each other. Fri, 09 Jun 2023 at 18:29 EDT (320 days ago) in Aquarius

169.

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 (319 days ago) in Aquarius

170.

Daytime Arietid meteor shower 2023 The Daytime Arietid meteor shower reaches its peak. Sat, 10 Jun 2023 (318 days ago) in Aries

171.

Messier 92 is well placed The globular cluster M92 (NGC 6341; mag 6.5) in Hercules culminates at around midnight local time. Sun, 11 Jun 2023 (318 days ago) in Hercules

172.

Close approach of Venus and M44 Venus and M44 pass close to each other. Tue, 13 Jun 2023 at 20:30 EDT (316 days ago) in Cancer

173.

Close approach of the Moon and Jupiter The Moon and Jupiter pass close to each other. Wed, 14 Jun 2023 at 01:26 EDT (315 days ago) in Aries

174.

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 (315 days ago) in Aries

175.

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 (313 days ago) in Taurus

176.

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 (313 days ago) in Scorpius

177.

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 (312 days ago) in Taurus

178.

Saturn enters retrograde motion Saturn reverses its direction of motion across the sky. Sat, 17 Jun 2023 at 12:51 EDT (312 days ago) in Aquarius

179.

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 (312 days ago) in Scorpius

180.

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 (312 days ago) in Ara