101.

Full Moon The Moon reaches full phase and is visible for much of the night. Wed, 10 May 2017 at 17:42 EDT (2,547 days ago) in Libra

102.

Messier 5 is well placed The globular cluster M5 (NGC 5904; mag 5.7) in Serpens culminates at around midnight local time. Thu, 11 May 2017 (2,546 days ago) in Serpens Caput

103.

Conjunction of Mercury and Eris Mercury and Eris share the same right ascension, at a separation of 9°39'. Fri, 12 May 2017 at 08:55 EDT (2,545 days ago) in Cetus

104.

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, 12 May 2017 at 15:51 EDT (2,545 days ago) in Ophiuchus

105.

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, 13 May 2017 at 02:20 EDT (2,544 days ago) in Ophiuchus

106.

Conjunction of the Moon and Saturn The Moon and Saturn share the same right ascension, at a separation of 3°04'. Sat, 13 May 2017 at 18:45 EDT (2,544 days ago) in Sagittarius

107.

Close approach of the Moon and Saturn The Moon and Saturn pass close to each other. Sat, 13 May 2017 at 19:10 EDT (2,544 days ago) in Sagittarius

108.

Supernova SN2017eaw discovered A new supernova has been discovered in NGC 6946. Sat, 13 May 2017 (2,543 days ago)

109.

Mercury at greatest elongation west Mercury is bright and well placed in the dawn sky. Wed, 17 May 2017 at 19:06 EDT (2,540 days ago) in Pisces

110.

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. Thu, 18 May 2017 at 20:33 EDT (2,539 days ago) in Aquarius

111.

Close approach of the Moon and Neptune The Moon and Neptune pass close to each other. Sat, 20 May 2017 at 01:46 EDT (2,537 days ago) in Aquarius

112.

Lunar occultation of Neptune The Moon will pass in front of Neptune, creating a lunar occultation visible from South Georgia and the South Sandwich Islands, Bouvet Island, Saint Helena and Antarctica. Sat, 20 May 2017 at 01:46 EDT (2,537 days ago) in Aquarius

113.

Conjunction of the Moon and Venus The Moon and Venus share the same right ascension, at a separation of 2°23'. Mon, 22 May 2017 at 08:31 EDT (2,535 days ago) in Pisces

114.

Close approach of the Moon and Venus The Moon and Venus pass close to each other. Mon, 22 May 2017 at 09:55 EDT (2,535 days ago) in Pisces

115.

Supernova SN2017egm discovered A new supernova has been discovered in NGC 3191. Mon, 22 May 2017 (2,534 days ago)

116.

Mercury at dichotomy Mercury reaches half phase in the dawn sky. Tue, 23 May 2017 at 10:42 EDT (2,534 days ago) in Aries

117.

Mercury at highest altitude in morning sky Mercury is bright and well placed in the dawn sky. Tue, 23 May 2017 (2,534 days ago) in Pisces

118.

Conjunction of the Moon and Mercury The Moon and Mercury share the same right ascension, at a separation of 1°36'. Tue, 23 May 2017 at 21:19 EDT (2,534 days ago) in Aries

119.

Close approach of the Moon and Mercury The Moon and Mercury pass close to each other. Tue, 23 May 2017 at 22:07 EDT (2,534 days ago) in Aries

120.

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. Wed, 24 May 2017 at 05:25 EDT (2,533 days ago) in Aries