1.

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. Fri, 23 Aug 2019 at 07:56 PDT (2,150 days ago) in Taurus

2.

Mars at aphelion Mars passes the furthest point along its orbit from the Sun. Sun, 25 Aug 2019 at 20:48 PDT (2,148 days ago) in Leo

3.

Close approach of the Moon and M44 The Moon and M44 pass close to each other. Wed, 28 Aug 2019 at 05:12 PDT (2,145 days ago) in Cancer

4.

Mars at apogee Mars reaches its furthest point from the Earth, as it passes around the far side of the Sun. Wed, 28 Aug 2019 at 12:20 PDT (2,145 days ago) in Leo

5.

New Moon The Moon disappears into the Sun's glare for a few days. Fri, 30 Aug 2019 at 03:38 PDT (2,143 days ago) in Leo

6.

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, 30 Aug 2019 at 08:53 PDT (2,143 days ago) in Leo

7.

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, 31 Aug 2019 at 22:41 PDT (2,142 days ago) in Virgo

8.

Aurigid meteor shower 2019 The Aurigid meteor shower reaches its peak. Sun, 01 Sep 2019 (2,141 days ago) in Auriga

9.

Mars at solar conjunction Mars is unobservable as it passes around the far side of the Sun – marking the end of one apparition and the beginning of the next. Mon, 02 Sep 2019 at 03:17 PDT (2,140 days ago) in Leo

10.

Mercury at superior solar conjunction Mercury passes around the far side of the Sun. Tue, 03 Sep 2019 at 18:48 PDT (2,139 days ago) in Leo

11.

Asteroid 135 Hertha at opposition Asteroid 135 Hertha makes closest approach to the Earth. Wed, 04 Sep 2019 at 16:58 PDT (2,138 days ago) in Aquarius

12.

Comet C/2018 W2 (Africano) passes perihelion Comet C/2018 W2 (Africano) makes its closest approach to the Sun. Thu, 05 Sep 2019 (2,137 days ago) in Perseus

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. Thu, 05 Sep 2019 at 20:11 PDT (2,137 days ago) in Ophiuchus

14.

Conjunction of the Moon and Jupiter The Moon and Jupiter share the same right ascension, at a separation of 2°18'. Thu, 05 Sep 2019 at 23:51 PDT (2,137 days ago) in Ophiuchus

15.

Close approach of the Moon and Jupiter The Moon and Jupiter pass close to each other. Fri, 06 Sep 2019 at 00:39 PDT (2,136 days ago) in Ophiuchus

16.

Conjunction of the Moon and Saturn The Moon and Saturn share the same right ascension, at a separation of 2'24". Sun, 08 Sep 2019 at 06:41 PDT (2,134 days ago) in Sagittarius

17.

Close approach of the Moon and Saturn The Moon and Saturn pass close to each other. Sun, 08 Sep 2019 at 06:41 PDT (2,134 days ago) in Sagittarius

18.

Lunar occultation of Saturn The Moon will pass in front of Saturn, creating a lunar occultation visible from countries and territories including Australia, Indonesia, Papua New Guinea and East Timor amongst others. Sun, 08 Sep 2019 at 06:41 PDT (2,134 days ago) in Sagittarius

19.

September ε-Perseid meteor shower 2019 The September ε-Perseid meteor shower reaches its peak. Mon, 09 Sep 2019 (2,133 days ago) in Perseus

20.

Neptune at opposition Neptune lies in the opposite direction to the Sun in the sky, making it optimally positioned to be observable for much of the night. Tue, 10 Sep 2019 at 00:15 PDT (2,132 days ago) in Aquarius