1.

Messier 55 is well placed The globular cluster M55 (NGC 6809l; mag 6.3) in Sagittarius culminates at around midnight local time. Wed, 17 Jul 2019 (1,743 days ago) in Sagittarius

2.

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, 20 Jul 2019 at 19:58 EDT (1,740 days ago) in Aquarius

3.

Mercury at inferior solar conjunction Mercury passes around the near side of the Sun. Sun, 21 Jul 2019 at 08:29 EDT (1,739 days ago) in Cancer

4.

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. Wed, 24 Jul 2019 at 21:18 EDT (1,736 days ago) in Pisces

5.

Piscis Austrinid meteor shower 2019 The Piscis Austrinid meteor shower reaches its peak. Mon, 29 Jul 2019 (1,731 days ago) in Piscis Austrinus

6.

Southern δ-Aquariid meteor shower 2019 The Southern δ-Aquariid meteor shower reaches its peak. Tue, 30 Jul 2019 (1,730 days ago) in Aquarius

7.

α-Capricornid meteor shower 2019 The α-Capricornid meteor shower reaches its peak. Tue, 30 Jul 2019 (1,730 days ago) in Capricornus

8.

Conjunction of the Moon and Mercury The Moon and Mercury share the same right ascension, at a separation of 4°31'. Tue, 30 Jul 2019 at 22:19 EDT (1,730 days ago) in Gemini

9.

New Moon The Moon disappears into the Sun's glare for a few days. Wed, 31 Jul 2019 at 23:13 EDT (1,729 days ago) in Cancer

10.

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. Thu, 01 Aug 2019 at 19:31 EDT (1,728 days ago) in Leo

11.

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, 02 Aug 2019 at 03:11 EDT (1,727 days ago) in Leo

12.

Asteroid 16 Psyche at opposition Asteroid 16 Psyche makes closest approach to the Earth. Tue, 06 Aug 2019 at 15:10 EDT (1,723 days ago) in Capricornus

13.

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. Wed, 07 Aug 2019 at 13:31 EDT (1,722 days ago) in Libra

14.

Venus at perihelion Venus passes its orbit's closest point to the Sun. Thu, 08 Aug 2019 at 12:26 EDT (1,721 days ago) in Cancer

15.

Comet 168P/Hergenrother passes perihelion Comet 168P/Hergenrother makes its closest approach to the Sun. Fri, 09 Aug 2019 (1,720 days ago) in Taurus

16.

Conjunction of the Moon and Jupiter The Moon and Jupiter share the same right ascension, at a separation of 2°28'. Fri, 09 Aug 2019 at 18:51 EDT (1,720 days ago) in Ophiuchus

17.

Close approach of the Moon and Jupiter The Moon and Jupiter pass close to each other. Fri, 09 Aug 2019 at 19:45 EDT (1,720 days ago) in Ophiuchus

18.

Mercury at greatest elongation west Mercury is bright and well placed in the dawn sky. Fri, 09 Aug 2019 at 23:35 EDT (1,720 days ago) in Cancer

19.

Jupiter ends retrograde motion Jupiter returns to its usual eastward motion after opposition. Sun, 11 Aug 2019 at 09:47 EDT (1,718 days ago) in Ophiuchus

20.

Asteroid 15 Eunomia at opposition Asteroid 15 Eunomia makes closest approach to the Earth. Sun, 11 Aug 2019 at 19:58 EDT (1,718 days ago) in Aquarius