1.

New Moon The Moon disappears into the Sun's glare for a few days. Thu, 17 Sep 2020 at 04:01 PDT (1,760 days ago) in Virgo

2.

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, 18 Sep 2020 at 06:47 PDT (1,759 days ago) in Virgo

3.

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 14:52 PDT (1,759 days ago) in Virgo

4.

Mercury at aphelion Mercury passes the furthest point along its orbit from the Sun. Fri, 18 Sep 2020 at 20:23 PDT (1,759 days ago) in Virgo

5.

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, 19 Sep 2020 at 06:06 PDT (1,758 days ago) in Virgo

6.

Conjunction of Mars and Eris Mars and Eris share the same right ascension, at a separation of 8°12'. Sun, 20 Sep 2020 at 18:41 PDT (1,757 days ago) in Cetus

7.

Lunar occultation of Beta1 Scorpii The Moon will pass in front of Beta1 Scorpii (Acrab), creating a lunar occultation visible from countries and territories including the Contiguous United States, Mexico, Nicaragua and Honduras amongst others. Mon, 21 Sep 2020 at 18:28 PDT (1,756 days ago) in Scorpius

8.

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 06:23 PDT (1,755 days ago) in Virgo

9.

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, 23 Sep 2020 at 18:55 PDT (1,754 days ago) in Sagittarius

10.

Comet 88P/Howell passes perihelion Comet 88P/Howell makes its closest approach to the Sun. Thu, 24 Sep 2020 (1,753 days ago) in Scorpius

11.

NGC 55 is well placed NGC 55 (mag 8.2), a barred irregular galaxy in Sculptor culminates at around midnight local time. Thu, 24 Sep 2020 (1,753 days ago) in Sculptor

12.

Conjunction of the Moon and Jupiter The Moon and Jupiter share the same right ascension, at a separation of 1°35'. Thu, 24 Sep 2020 at 23:48 PDT (1,753 days ago) in Sagittarius

13.

Close approach of the Moon and Jupiter The Moon and Jupiter pass close to each other. Thu, 24 Sep 2020 at 23:56 PDT (1,753 days ago) in Sagittarius

14.

Mercury at highest altitude in evening sky Mercury is bright and well placed in the evening sky. Fri, 25 Sep 2020 (1,752 days ago) in Virgo

15.

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 13:38 PDT (1,752 days ago) in Sagittarius

16.

Close approach of the Moon and Saturn The Moon and Saturn pass close to each other. Fri, 25 Sep 2020 at 14:06 PDT (1,752 days ago) in Sagittarius

17.

Daytime Sextantid meteor shower 2020 The Daytime Sextantid meteor shower reaches its peak. Sat, 26 Sep 2020 (1,750 days ago) in Sextans

18.

47 Tuc is well placed The second brightest globular cluster in the sky, 47 Tuc (NGC 104; mag 4.0), in Tucana culminates at around midnight local time. Sun, 27 Sep 2020 (1,750 days ago) in Tucana

19.

Supernova SN2020ukx discovered A new supernova has been discovered in NGC 2784. Sun, 27 Sep 2020 (1,749 days ago)

20.

The Moon at aphelion The Moon recedes to its orbit's furthest point from the Sun, which happens each month around the time of full moon. Mon, 28 Sep 2020 at 17:50 PDT (1,749 days ago) in Aquarius