1.

Asteroid 27 Euterpe at opposition Asteroid 27 Euterpe is well placed for observation. Wed, 05 Sep 2018 at 12:48 EDT (14 days ago) in Aquarius

2.

Close approach of the Moon and M44 The Moon and M44 pass within 1°04' of each other. Thu, 06 Sep 2018 at 22:27 EDT (13 days ago) in Cancer

3.

Neptune at opposition Neptune is well placed for observation. Fri, 07 Sep 2018 at 14:13 EDT (12 days ago) in Aquarius

4.

The Moon at perigee The Moon appears large as it makes its closest approach to the Earth. Fri, 07 Sep 2018 at 21:21 EDT (12 days ago) in Leo

5.

Piscid meteor shower The Piscid meteor shower reaches its peak. Sat, 08 Sep 2018 (10 days ago) in Leo

6.

New Moon The Moon disappears into the Sun's glare. Sun, 09 Sep 2018 at 14:03 EDT (10 days ago) in Leo

7.

21P/Giacobini-Zinner reaches its brightest 21P/Giacobini-Zinner is well placed for observation. Mon, 10 Sep 2018 (9 days ago) in Auriga

8.

21P/Giacobini-Zinner at perihelion 21P/Giacobini-Zinner makes its closest approach to the Sun. Mon, 10 Sep 2018 (9 days ago) in Auriga

9.

The Moon at perihelion The Moon reaches its closest point to the Sun. Tue, 11 Sep 2018 at 22:13 EDT (8 days ago) in Virgo

10.

Conjunction of the Moon and Jupiter The Moon and Jupiter share the same right ascension, at a separation of 4°22'. Thu, 13 Sep 2018 at 22:21 EDT (6 days ago) in Libra

11.

Close approach of the Moon and Jupiter The Moon and Jupiter pass within 4°10' of each other. Fri, 14 Sep 2018 at 00:45 EDT (5 days ago) in Libra

12.

Mars at perihelion Mars reaches its closest point to the Sun. Sun, 16 Sep 2018 at 08:54 EDT (3 days ago) in Capricornus

13.

Moon at First Quarter The Moon appears high in the sky at sunset and sets in the west at around midnight. Sun, 16 Sep 2018 at 19:16 EDT (3 days ago) in Ophiuchus

14.

Conjunction of the Moon and Saturn The Moon and Saturn share the same right ascension, at a separation of 2°03'. Mon, 17 Sep 2018 at 12:30 EDT (2 days ago) in Sagittarius

15.

Close approach of the Moon and Saturn The Moon and Saturn pass within 2°03' of each other. Mon, 17 Sep 2018 at 12:45 EDT (2 days ago) in Sagittarius

16.

Asteroid 30 Urania at opposition Asteroid 30 Urania is well placed for observation. Tue, 18 Sep 2018 at 15:11 EDT (16 hours ago) in Pisces

17.

The Moon at apogee The Moon appears small as it recedes to its furthest point from the Earth. Wed, 19 Sep 2018 at 20:54 EDT (13 hours away) in Capricornus

18.

Close approach of the Moon and Mars The Moon and Mars pass within 4°43' of each other. Thu, 20 Sep 2018 at 01:21 EDT (17 hours away) in Capricornus

19.

Conjunction of the Moon and Mars The Moon and Mars share the same right ascension, at a separation of 4°46'. Thu, 20 Sep 2018 at 02:41 EDT (18 hours away) in Capricornus

20.

Piscid meteor shower The Piscid meteor shower reaches its peak. Thu, 20 Sep 2018 (2 days away) in Virgo