301.

Mars at apogee Mars reaches its furthest point from the Earth, as it passes around the far side of the Sun. Wed, 28 Aug 2019 at 15:20 EDT (2,455 days ago) in Leo

302.

New Moon The Moon disappears into the Sun's glare for a few days. Fri, 30 Aug 2019 at 06:38 EDT (2,453 days ago) in Leo

303.

The Moon at perigee The Moon makes its monthly closest approach to the Earth, appearing larger than at other times of the month – though only very fractionally. Fri, 30 Aug 2019 at 11:53 EDT (2,453 days ago) in Leo

304.

The Moon at perihelion The Moon passes its closest point to the Sun, a monthly occurrence around the time of new moon. Sun, 01 Sep 2019 at 01:41 EDT (2,451 days ago) in Virgo

305.

Aurigid meteor shower 2019 The Aurigid meteor shower reaches its peak. Sun, 01 Sep 2019 (2,451 days ago) in Auriga

306.

Mars at solar conjunction Mars is unobservable as it passes around the far side of the Sun – marking the end of one apparition and the beginning of the next. Mon, 02 Sep 2019 at 06:17 EDT (2,450 days ago) in Leo

307.

Mercury at superior solar conjunction Mercury passes around the far side of the Sun. Tue, 03 Sep 2019 at 21:48 EDT (2,449 days ago) in Leo

308.

Comet C/2018 W2 (Africano) passes perihelion Comet C/2018 W2 (Africano) makes its closest approach to the Sun. Thu, 05 Sep 2019 (2,447 days ago) in Perseus

309.

Moon at First Quarter The Moon reaches first quarter phase – appearing high in the sky at sunset and remaining visible until around midnight. Thu, 05 Sep 2019 at 23:11 EDT (2,447 days ago) in Ophiuchus

310.

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 (2,446 days ago) in Ophiuchus

311.

Asteroid 135 Hertha at opposition Asteroid 135 Hertha makes closest approach to the Earth. Fri, 06 Sep 2019 at 03:10 EDT (2,446 days ago) in Aquarius

312.

Close approach of the Moon and Jupiter The Moon and Jupiter pass close to each other. Fri, 06 Sep 2019 at 03:39 EDT (2,446 days ago) in Ophiuchus

313.

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 (2,444 days ago) in Sagittarius

314.

Close approach of the Moon and Saturn The Moon and Saturn pass close to each other. Sun, 08 Sep 2019 at 09:41 EDT (2,444 days ago) in Sagittarius

315.

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 (2,444 days ago) in Sagittarius

316.

September ε-Perseid meteor shower 2019 The September ε-Perseid meteor shower reaches its peak. Mon, 09 Sep 2019 (2,443 days ago) in Perseus

317.

Neptune at opposition Neptune is optimally positioned for observation. Tue, 10 Sep 2019 at 03:15 EDT (2,442 days ago) in Aquarius

318.

The Moon at aphelion The Moon passes its furthest point from the Sun, a monthly occurrence around the time of full moon. Wed, 11 Sep 2019 at 06:15 EDT (2,441 days ago) in Capricornus

319.

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 (2,439 days ago) in Aquarius

320.

Full Moon The Moon reaches full phase and is visible for much of the night. Sat, 14 Sep 2019 at 00:32 EDT (2,438 days ago) in Aquarius