1.

Supernova SN2017drh discovered A new supernova has been discovered in NGC 6384. Tue, 02 May 2017 (2,548 days ago)

2.

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. Tue, 02 May 2017 at 22:47 EDT (2,549 days ago) in Cancer

3.

Lunar occultation of Regulus The Moon will pass in front of Regulus (Alpha Leonis), creating a lunar occultation visible from countries and territories including Australia, New Zealand, Indonesia and Papua New Guinea amongst others. Thu, 04 May 2017 at 05:58 EDT (2,547 days ago) in Leo

4.

η-Aquariid meteor shower 2017 The η-Aquariid meteor shower reaches its peak. Fri, 05 May 2017 (2,545 days ago) in Aquarius

5.

Mercury at aphelion Mercury passes the furthest point along its orbit from the Sun. Sat, 06 May 2017 at 09:49 EDT (2,545 days ago) in Pisces

6.

Conjunction of the Moon and Jupiter The Moon and Jupiter share the same right ascension, at a separation of 2°06'. Sun, 07 May 2017 at 17:25 EDT (2,544 days ago) in Virgo

7.

Close approach of the Moon and Jupiter The Moon and Jupiter pass close to each other. Sun, 07 May 2017 at 18:45 EDT (2,544 days ago) in Virgo

8.

Conjunction of Mercury and Uranus Mercury and Uranus share the same right ascension, at a separation of 2°13'. Sun, 07 May 2017 at 19:19 EDT (2,544 days ago) in Pisces

9.

η-Lyrid meteor shower 2017 The η-Lyrid meteor shower reaches its peak. Mon, 08 May 2017 (2,543 days ago) in Lyra

10.

Full Moon The Moon reaches full phase and is visible for much of the night. Wed, 10 May 2017 at 17:42 EDT (2,541 days ago) in Libra

11.

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 (2,540 days ago) in Serpens Caput

12.

Conjunction of Mercury and Eris Mercury and Eris share the same right ascension, at a separation of 9°39'. Fri, 12 May 2017 at 08:53 EDT (2,539 days ago) in Cetus

13.

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 (2,539 days ago) in Ophiuchus

14.

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 (2,538 days ago) in Ophiuchus

15.

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 (2,538 days ago) in Sagittarius

16.

Close approach of the Moon and Saturn The Moon and Saturn pass close to each other. Sat, 13 May 2017 at 19:10 EDT (2,538 days ago) in Sagittarius

17.

Supernova SN2017eaw discovered A new supernova has been discovered in NGC 6946. Sat, 13 May 2017 (2,537 days ago)

18.

Mercury at greatest elongation west Mercury is bright and well placed in the dawn sky. Wed, 17 May 2017 at 19:06 EDT (2,534 days ago) in Pisces

19.

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 (2,533 days ago) in Aquarius

20.

Close approach of the Moon and Neptune The Moon and Neptune pass close to each other. Sat, 20 May 2017 at 01:46 EDT (2,531 days ago) in Aquarius