1.

New Moon The Moon disappears into the Sun's glare. Thu, 17 Sep 2020 at 07:00 EDT (3 days ago) in Virgo

2.

88P/Howell reaches its brightest 88P/Howell is well placed for observation. Thu, 17 Sep 2020 (3 days ago) in Scorpius

3.

Mercury reaches highest point in evening sky Mercury is bright and well placed in the evening sky. Fri, 18 Sep 2020 (2 days ago) in Virgo

4.

The Moon at perigee The Moon appears large as it makes its closest approach to the Earth. Fri, 18 Sep 2020 at 09:47 EDT (2 days ago) in Virgo

5.

Conjunction of the Moon and Mercury The Moon and Mercury share the same right ascension, at a separation of 6°25'. Fri, 18 Sep 2020 at 17:53 EDT (2 days ago) in Virgo

6.

Mercury at aphelion Mercury reaches its furthest point from the Sun. Fri, 18 Sep 2020 at 23:14 EDT (2 days ago) in Virgo

7.

Conjunction of Mars and Eris Mars and Eris share the same right ascension, at a separation of 8°09'. Sat, 19 Sep 2020 at 01:31 EDT (Yesterday) in Cetus

8.

The Moon at perihelion The Moon reaches its closest point to the Sun. Sat, 19 Sep 2020 at 09:05 EDT (Yesterday) in Virgo

9.

September equinox Day and night have equal length, marking the beginning of autumn in the northern hemisphere and spring in the southern hemisphere. Tue, 22 Sep 2020 at 09:15 EDT (2 days away) in Virgo

10.

Moon at First Quarter The Moon appears high in the sky at sunset and sets in the west at around midnight. Wed, 23 Sep 2020 at 21:55 EDT (3 days away) in Sagittarius

11.

Conjunction of the Moon and Jupiter The Moon and Jupiter share the same right ascension, at a separation of 1°35'. Fri, 25 Sep 2020 at 02:48 EDT (5 days away) in Sagittarius

12.

Conjunction of the Moon and Saturn The Moon and Saturn share the same right ascension, at a separation of 2°19'. Fri, 25 Sep 2020 at 16:38 EDT (5 days away) in Sagittarius

13.

88P/Howell at perihelion 88P/Howell makes its closest approach to the Sun. Sat, 26 Sep 2020 (6 days away) in Scorpius

14.

Daytime Sextantid meteor shower The Daytime Sextantid meteor shower reaches its peak. Sun, 27 Sep 2020 (7 days away) in Sextans

15.

The Moon at aphelion The Moon reaches its furthest point from the Sun. Mon, 28 Sep 2020 at 20:51 EDT (8 days away) in Aquarius

16.

136472 Makemake at solar conjunction 136472 Makemake is unobservable as it passes around the far side of the Sun. Tue, 29 Sep 2020 at 04:36 EDT (9 days away) in Coma Berenices

17.

Asteroid 68 Leto at opposition Asteroid 68 Leto is well placed for observation. Wed, 30 Sep 2020 at 12:46 EDT (10 days away) in Cetus

18.

Mercury at greatest elongation east Mercury is bright and well placed in the evening sky. Thu, 01 Oct 2020 at 06:32 EDT (11 days away) in Virgo

19.

Full Moon The Moon is visible for much of the night. Thu, 01 Oct 2020 at 17:05 EDT (11 days away) in Cetus

20.

Conjunction of the Moon and Mars The Moon and Mars share the same right ascension, at a separation of 0°43'. Fri, 02 Oct 2020 at 23:25 EDT (12 days away) in Pisces