241.

Comet C/2018 W2 (Africano) passes perigee Comet C/2018 W2 (Africano) makes its closest approach to the Earth. Fri, 27 Sep 2019 (1,685 days ago) in Pegasus

242.

Comet C/2018 W2 (Africano) reaches peak brightness Comet C/2018 W2 (Africano) is forecast to reach the brightest point in its 2019 apparition. Thu, 26 Sep 2019 (1,686 days ago) in Pegasus

243.

NGC 55 is well placed NGC 55 (mag 8.2), a barred irregular galaxy in Sculptor culminates at around midnight local time. Wed, 25 Sep 2019 (1,687 days ago) in Sculptor

244.

Close approach of the Moon and M44 The Moon and M44 pass close to each other. Tue, 24 Sep 2019 at 18:00 EDT (1,688 days ago) in Cancer

245.

September equinox Day and night have equal length, marking the beginning of autumn in the northern hemisphere and spring in the southern hemisphere. Mon, 23 Sep 2019 at 03:43 EDT (1,689 days ago) in Virgo

246.

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. Sat, 21 Sep 2019 at 22:41 EDT (1,691 days ago) in Orion

247.

Saturn ends retrograde motion Saturn returns to its usual eastward motion after opposition. Wed, 18 Sep 2019 at 04:25 EDT (1,694 days ago) in Sagittarius

248.

Full Moon The Moon reaches full phase and is visible for much of the night. Sat, 14 Sep 2019 at 00:32 EDT (1,698 days ago) in Aquarius

249.

The Moon at apogee The Moon recedes to its orbit's furthest point from the Earth, making it appear fractionally smaller than at other times of the month. Fri, 13 Sep 2019 at 09:32 EDT (1,699 days ago) in Aquarius

250.

Comet 260P/McNaught passes perihelion Comet 260P/McNaught makes its closest approach to the Sun. Wed, 11 Sep 2019 (1,701 days ago) in Aries

251.

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. Wed, 11 Sep 2019 at 06:15 EDT (1,701 days ago) in Capricornus

252.

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 03:15 EDT (1,702 days ago) in Aquarius

253.

September ε-Perseid meteor shower 2019 The September ε-Perseid meteor shower reaches its peak. Mon, 09 Sep 2019 (1,703 days ago) in Perseus

254.

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 09:41 EDT (1,704 days ago) in Sagittarius

255.

Close approach of the Moon and Saturn The Moon and Saturn pass close to each other. Sun, 08 Sep 2019 at 09:41 EDT (1,704 days ago) in Sagittarius

256.

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 09:41 EDT (1,704 days ago) in Sagittarius

257.

Close approach of the Moon and Jupiter The Moon and Jupiter pass close to each other. Fri, 06 Sep 2019 at 03:39 EDT (1,706 days ago) in Ophiuchus

258.

Conjunction of the Moon and Jupiter The Moon and Jupiter share the same right ascension, at a separation of 2°18'. Fri, 06 Sep 2019 at 02:51 EDT (1,706 days ago) in Ophiuchus

259.

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 23:11 EDT (1,707 days ago) in Ophiuchus

260.

Comet C/2018 W2 (Africano) passes perihelion Comet C/2018 W2 (Africano) makes its closest approach to the Sun. Thu, 05 Sep 2019 (1,707 days ago) in Perseus