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. Sat, 18 May 2030 at 21:06 EDT (2,131 days away) in Ophiuchus

162.

Saturn at solar conjunction Saturn is unobservable as it passes around the far side of the Sun – marking the end of one apparition and the beginning of the next. Sun, 19 May 2030 at 02:12 EDT (2,132 days away) in Taurus

163.

Asteroid 29 Amphitrite at opposition Asteroid 29 Amphitrite makes closest approach to the Earth. Mon, 20 May 2030 at 03:10 EDT (2,133 days away) in Libra

164.

Mercury at greatest elongation west Mercury is bright and well placed in the dawn sky. Mon, 20 May 2030 at 22:39 EDT (2,133 days away) in Cetus

165.

Asteroid 14 Irene at opposition Asteroid 14 Irene makes closest approach to the Earth. Tue, 21 May 2030 at 22:22 EDT (2,134 days away) in Libra

166.

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. Fri, 24 May 2030 at 00:57 EDT (2,137 days away) in Aquarius

167.

Mars at solar conjunction Mars is unobservable as it passes around the far side of the Sun – marking the end of one apparition and the beginning of the next. Sat, 25 May 2030 at 06:18 EDT (2,138 days away) in Taurus

168.

Conjunction of Venus and Ceres Venus and Ceres share the same right ascension, at a separation of 6°21'. Sun, 26 May 2030 at 13:57 EDT (2,139 days away) in Cetus

169.

Mercury at dichotomy Mercury reaches half phase in the dawn sky. Sun, 26 May 2030 at 17:02 EDT (2,139 days away) in Aries

170.

Mercury at highest altitude in morning sky Mercury is bright and well placed in the dawn sky. Sun, 26 May 2030 (2,140 days away) in Cetus

171.

Conjunction of Venus and Eris Venus and Eris share the same right ascension, at a separation of 8°08'. Mon, 27 May 2030 at 22:27 EDT (2,140 days away) in Cetus

172.

Messier 4 is well placed The globular cluster M4 (NGC 6121; mag 5.4) in Scorpius culminates at around midnight local time. Tue, 28 May 2030 (2,141 days away) in Scorpius

173.

Conjunction of the Moon and Venus The Moon and Venus share the same right ascension, at a separation of 5°58'. Tue, 28 May 2030 at 21:49 EDT (2,141 days away) in Pisces

174.

Conjunction of the Moon and Mercury The Moon and Mercury share the same right ascension, at a separation of 5°41'. Thu, 30 May 2030 at 02:27 EDT (2,143 days away) in Aries

175.

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. Thu, 30 May 2030 at 10:29 EDT (2,143 days away) in Aries

176.

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. Fri, 31 May 2030 at 02:14 EDT (2,144 days away) in Taurus

177.

Conjunction of Ceres and Eris Ceres and Eris share the same right ascension, at a separation of 1°45'. Fri, 31 May 2030 at 03:03 EDT (2,144 days away) in Cetus

178.

New Moon The Moon disappears into the Sun's glare for a few days. Sat, 01 Jun 2030 at 02:22 EDT (2,145 days away) in Taurus

179.

Annular solar eclipse There will be an eclipse of the Sun, visible from Russia, Asia and Northern Africa. Sat, 01 Jun 2030 at 02:29 EDT (2,145 days away) in Taurus

180.

The Great Globular Cluster in Hercules is well placed The Great Globular Cluster in Hercules (M13, NGC 6205; mag 5.8) culminates at around midnight local time. Sun, 02 Jun 2030 (2,146 days away) in Hercules