161.

Jupiter ends retrograde motion Jupiter returns to its usual eastward motion after opposition. Mon, 09 May 2016 at 08:26 EDT (2,906 days ago) in Leo

162.

Transit of Mercury Mercury will pass in front of the Sun, creating a transit visible from the Americas, Africa, north-western Russia, Europe, Asia and Alaska. Mon, 09 May 2016 at 10:57 EDT (2,906 days ago) in Aries

163.

Mercury at inferior solar conjunction Mercury passes around the near side of the Sun. Mon, 09 May 2016 at 11:06 EDT (2,906 days ago) in Aries

164.

Messier 5 is well placed The globular cluster M5 (NGC 5904; mag 5.7) in Serpens culminates at around midnight local time. Wed, 11 May 2016 (2,904 days ago) in Serpens Caput

165.

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. Fri, 13 May 2016 at 13:02 EDT (2,902 days ago) in Leo

166.

Close approach of the Moon and Jupiter The Moon and Jupiter pass close to each other. Sun, 15 May 2016 at 04:21 EDT (2,900 days ago) in Leo

167.

Conjunction of the Moon and Jupiter The Moon and Jupiter share the same right ascension, at a separation of 1°59'. Sun, 15 May 2016 at 05:32 EDT (2,900 days ago) in Leo

168.

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. Wed, 18 May 2016 at 18:06 EDT (2,897 days ago) in Virgo

169.

Mercury at aphelion Mercury passes the furthest point along its orbit from the Sun. Thu, 19 May 2016 at 12:47 EDT (2,896 days ago) in Aries

170.

Conjunction of the Moon and Mars The Moon and Mars share the same right ascension, at a separation of 6°01'. Sat, 21 May 2016 at 16:20 EDT (2,894 days ago) in Scorpius

171.

Full Moon The Moon reaches full phase and is visible for much of the night. Sat, 21 May 2016 at 17:14 EDT (2,894 days ago) in Libra

172.

Close approach of the Moon and Mars The Moon and Mars pass close to each other. Sat, 21 May 2016 at 18:22 EDT (2,894 days ago) in Scorpius

173.

Mars at opposition Mars lies in the opposite direction to the Sun in the sky, making it closer, brighter and larger than at other times. It is also optimally positioned to be observable for much of the night. Sun, 22 May 2016 at 07:10 EDT (2,893 days ago) in Scorpius

174.

Conjunction of the Moon and Saturn The Moon and Saturn share the same right ascension, at a separation of 3°12'. Sun, 22 May 2016 at 17:34 EDT (2,893 days ago) in Ophiuchus

175.

Close approach of the Moon and Saturn The Moon and Saturn pass close to each other. Sun, 22 May 2016 at 18:16 EDT (2,893 days ago) in Ophiuchus

176.

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. Mon, 23 May 2016 at 09:42 EDT (2,892 days ago) in Ophiuchus

177.

Supernova SN2016coj discovered A new supernova has been discovered in NGC 4125. Fri, 27 May 2016 (2,887 days ago)

178.

Messier 4 is well placed The globular cluster M4 (NGC 6121; mag 5.4) in Scorpius culminates at around midnight local time. Sat, 28 May 2016 (2,887 days ago) in Scorpius

179.

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. Sun, 29 May 2016 at 08:12 EDT (2,886 days ago) in Aquarius

180.

Asteroid 7 Iris at opposition Asteroid 7 Iris makes closest approach to the Earth. Sun, 29 May 2016 at 17:34 EDT (2,886 days ago) in Ophiuchus