281.

Conjunction of the Moon and Mars The Moon and Mars share the same right ascension, at a separation of 1'36". Sun, 06 Sep 2020 at 00:45 EDT (1,393 days ago) in Pisces

282.

September ε-Perseid meteor shower 2020 The September ε-Perseid meteor shower reaches its peak. Wed, 09 Sep 2020 (1,390 days ago) in Perseus

283.

Mars enters retrograde motion Mars reverses its direction of motion across the sky. Wed, 09 Sep 2020 at 18:21 EDT (1,390 days ago) in Pisces

284.

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. Thu, 10 Sep 2020 at 05:26 EDT (1,389 days ago) in Taurus

285.

Asteroid 19 Fortuna at opposition Asteroid 19 Fortuna makes closest approach to the Earth. Thu, 10 Sep 2020 at 15:10 EDT (1,389 days ago) in Pisces

286.

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. Fri, 11 Sep 2020 at 16:17 EDT (1,388 days ago) in Aquarius

287.

Jupiter ends retrograde motion Jupiter returns to its usual eastward motion after opposition. Sat, 12 Sep 2020 at 20:47 EDT (1,387 days ago) in Sagittarius

288.

Conjunction of the Moon and Venus The Moon and Venus share the same right ascension, at a separation of 4°27'. Mon, 14 Sep 2020 at 00:43 EDT (1,385 days ago) in Cancer

289.

Close approach of the Moon and Venus The Moon and Venus pass close to each other. Mon, 14 Sep 2020 at 02:22 EDT (1,385 days ago) in Cancer

290.

Comet C/2020 K8 (Catalina-ATLAS) passes perihelion Comet C/2020 K8 (Catalina-ATLAS) makes its closest approach to the Sun. Tue, 15 Sep 2020 (1,384 days ago) in Sextans

291.

Supernova SN2020tlf discovered A new supernova has been discovered in NGC 5731. Tue, 15 Sep 2020 (1,383 days ago)

292.

Comet 88P/Howell reaches peak brightness Comet 88P/Howell is forecast to reach the brightest point in its 2020 apparition. Wed, 16 Sep 2020 (1,383 days ago) in Scorpius

293.

New Moon The Moon disappears into the Sun's glare for a few days. Thu, 17 Sep 2020 at 07:01 EDT (1,382 days ago) in Virgo

294.

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 17:52 EDT (1,381 days ago) in Virgo

295.

Conjunction of Mars and Eris Mars and Eris share the same right ascension, at a separation of 8°09'. Sat, 19 Sep 2020 at 01:02 EDT (1,380 days ago) in Cetus

296.

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 21:28 EDT (1,378 days ago) in Scorpius

297.

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 09:23 EDT (1,377 days ago) in Virgo

298.

Mercury at highest altitude in evening sky Mercury is bright and well placed in the evening sky. Wed, 23 Sep 2020 (1,376 days ago) in Virgo

299.

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 21:55 EDT (1,376 days ago) in Sagittarius

300.

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 (1,375 days ago) in Sculptor