1.

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. Sun, 26 May 2019 at 09:27 EDT (1,788 days ago) in Aquarius

2.

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, 26 May 2019 at 12:34 EDT (1,788 days ago) in Aquarius

3.

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 2019 (1,786 days ago) in Scorpius

4.

1 Ceres at opposition 1 Ceres lies in the opposite direction to the Sun in the sky, making it closer and brighter than at other times. It is also optimally positioned to be observable for much of the night. Wed, 29 May 2019 at 13:26 EDT (1,785 days ago) in Ophiuchus

5.

Conjunction of the Moon and Venus The Moon and Venus share the same right ascension, at a separation of 3°14'. Sat, 01 Jun 2019 at 14:13 EDT (1,782 days ago) in Aries

6.

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. Sat, 01 Jun 2019 at 16:56 EDT (1,782 days ago) in Aries

7.

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 2019 (1,781 days ago) in Hercules

8.

New Moon The Moon disappears into the Sun's glare for a few days. Mon, 03 Jun 2019 at 06:03 EDT (1,780 days ago) in Taurus

9.

Messier 12 is well placed The globular cluster M12 (NGC 6218; mag 6.1) in Ophiuchus culminates at around midnight local time. Mon, 03 Jun 2019 (1,780 days ago) in Ophiuchus

10.

Conjunction of the Moon and Mercury The Moon and Mercury share the same right ascension, at a separation of 3°39'. Tue, 04 Jun 2019 at 11:40 EDT (1,779 days ago) in Taurus

11.

Close approach of the Moon and Mars The Moon and Mars pass close to each other. Wed, 05 Jun 2019 at 11:04 EDT (1,778 days ago) in Gemini

12.

Conjunction of the Moon and Mars The Moon and Mars share the same right ascension, at a separation of 1°35'. Wed, 05 Jun 2019 at 11:04 EDT (1,778 days ago) in Gemini

13.

Messier 10 is well placed The globular cluster M10 (NGC 6254; mag 6.6) in Ophiuchus culminates at around midnight local time. Thu, 06 Jun 2019 (1,777 days ago) in Ophiuchus

14.

Close approach of the Moon and M44 The Moon and M44 pass close to each other. Fri, 07 Jun 2019 at 04:01 EDT (1,776 days ago) in Cancer

15.

The Moon at perigee The Moon makes its monthly closest approach to the Earth, making it appear fractionally larger than at other times of the month. Fri, 07 Jun 2019 at 19:15 EDT (1,776 days ago) in Cancer

16.

Messier 62 is well placed The globular cluster M62 (NGC 6266; mag 6.4) in Ophiuchus culminates at around midnight local time. Fri, 07 Jun 2019 (1,776 days ago) in Ophiuchus

17.

Comet C/2018 R3 (Lemmon) passes perihelion Comet C/2018 R3 (Lemmon) makes its closest approach to the Sun. Sat, 08 Jun 2019 (1,775 days ago) in Camelopardalis

18.

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. Mon, 10 Jun 2019 at 01:59 EDT (1,773 days ago) in Leo

19.

Jupiter at opposition Jupiter lies in the opposite direction to the Sun in the sky, making it slightly closer, brighter and larger than at other times. It is also optimally positioned to be observable for much of the night. Mon, 10 Jun 2019 at 11:20 EDT (1,773 days ago) in Ophiuchus

20.

Daytime Arietid meteor shower 2019 The Daytime Arietid meteor shower reaches its peak. Mon, 10 Jun 2019 (1,772 days ago) in Aries