161.

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. Tue, 13 May 2031 at 15:07 EDT (1,736 days away) in Capricornus

162.

Conjunction of Mercury and Eris Mercury and Eris share the same right ascension, at a separation of 6°57'. Tue, 13 May 2031 at 21:00 EDT (1,736 days away) in Cetus

163.

The Moon at perihelion The Moon passes its closest point to the Sun, a monthly occurrence around the time of new moon. Mon, 19 May 2031 at 08:13 EDT (1,742 days away) in Aries

164.

Conjunction of the Moon and Mercury The Moon and Mercury share the same right ascension, at a separation of 4°21'. Mon, 19 May 2031 at 10:38 EDT (1,742 days away) in Aries

165.

Annular solar eclipse There will be an eclipse of the Sun, visible from parts of Southeast Asia, southern India, southern Democratic Republic of the Congo, Angola, Tanzania and Zambia. Wed, 21 May 2031 at 03:16 EDT (1,744 days away) in Taurus

166.

New Moon The Moon disappears into the Sun's glare for a few days. Wed, 21 May 2031 at 03:18 EDT (1,744 days away) in Taurus

167.

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. Sat, 24 May 2031 at 22:08 EDT (1,747 days away) in Gemini

168.

Conjunction of the Moon and Venus The Moon and Venus share the same right ascension, at a separation of 7°03'. Sun, 25 May 2031 at 08:15 EDT (1,748 days away) in Gemini

169.

Conjunction of Uranus and Ceres Uranus and Ceres share the same right ascension, at a separation of 57'. Sun, 25 May 2031 at 19:05 EDT (1,748 days away) in Taurus

170.

Messier 4 is well placed The globular cluster M4 (NGC 6121; mag 5.4) in Scorpius culminates at around midnight local time. Wed, 28 May 2031 (1,751 days away) in Scorpius

171.

Moon at First Quarter The Moon reaches first quarter phase – appearing high in the sky at sunset and remaining visible until around midnight. Thu, 29 May 2031 at 07:20 EDT (1,752 days away) in Sextans

172.

Venus at dichotomy Venus reaches half phase in the evening sky. Sun, 01 Jun 2031 at 16:34 EDT (1,755 days away) in Gemini

173.

Lunar occultation of Spica The Moon will pass in front of Spica (Alpha Virginis), creating a lunar occultation visible from Antarctica, Chile and Argentina. Sun, 01 Jun 2031 at 20:37 EDT (1,755 days away) in Virgo

174.

Venus at greatest elongation east Venus is bright and well placed in the evening sky. Mon, 02 Jun 2031 at 04:22 EDT (1,756 days away) in Gemini

175.

Close approach of the Moon and Mars The Moon and Mars pass close to each other. Mon, 02 Jun 2031 at 15:27 EDT (1,756 days away) in Virgo

176.

Conjunction of the Moon and Mars The Moon and Mars share the same right ascension, at a separation of 1°21'. Mon, 02 Jun 2031 at 16:02 EDT (1,756 days away) in Virgo

177.

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. Mon, 02 Jun 2031 (1,756 days away) in Hercules

178.

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. Mon, 02 Jun 2031 at 22:48 EDT (1,756 days away) in Taurus

179.

Messier 12 is well placed The globular cluster M12 (NGC 6218; mag 6.1) in Ophiuchus culminates at around midnight local time. Tue, 03 Jun 2031 (1,757 days away) in Ophiuchus

180.

Lunar occultation of Beta1 Scorpii The Moon will pass in front of Beta1 Scorpii (Acrab), creating a lunar occultation visible from countries and territories including Australia, Antarctica, South Africa and Botswana amongst others. Wed, 04 Jun 2031 at 14:19 EDT (1,758 days away) in Scorpius