261.

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. Tue, 11 Sep 2018 at 22:12 EDT (2,094 days ago) in Virgo

262.

Comet 21P/Giacobini-Zinner passes perihelion Comet 21P/Giacobini-Zinner makes its closest approach to the Sun. Thu, 13 Sep 2018 (2,092 days ago) in Auriga

263.

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 22:19 EDT (2,092 days ago) in Libra

264.

Close approach of the Moon and Jupiter The Moon and Jupiter pass close to each other. Fri, 14 Sep 2018 at 00:43 EDT (2,091 days ago) in Libra

265.

Mars at perihelion Mars passes its orbit's closest point to the Sun. Sun, 16 Sep 2018 at 08:53 EDT (2,089 days ago) in Capricornus

266.

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. Sun, 16 Sep 2018 at 19:15 EDT (2,089 days ago) in Ophiuchus

267.

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 12:29 EDT (2,088 days ago) in Sagittarius

268.

Close approach of the Moon and Saturn The Moon and Saturn pass close to each other. Mon, 17 Sep 2018 at 12:43 EDT (2,088 days ago) in Sagittarius

269.

Asteroid 30 Urania at opposition Asteroid 30 Urania makes closest approach to the Earth. Wed, 19 Sep 2018 at 07:58 EDT (2,086 days ago) in Pisces

270.

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. Wed, 19 Sep 2018 at 20:53 EDT (2,086 days ago) in Capricornus

271.

Close approach of the Moon and Mars The Moon and Mars pass close to each other. Thu, 20 Sep 2018 at 01:19 EDT (2,085 days ago) in Capricornus

272.

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 02:40 EDT (2,085 days ago) in Capricornus

273.

Mercury at superior solar conjunction Mercury passes around the far side of the Sun. Thu, 20 Sep 2018 at 22:01 EDT (2,085 days ago) in Virgo

274.

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. Fri, 21 Sep 2018 at 20:56 EDT (2,084 days ago) in Capricornus

275.

September equinox Day and night have equal length, marking the beginning of autumn in the northern hemisphere and spring in the southern hemisphere. Sat, 22 Sep 2018 at 21:48 EDT (2,083 days ago) in Virgo

276.

Full Moon The Moon reaches full phase and is visible for much of the night. Mon, 24 Sep 2018 at 22:52 EDT (2,081 days ago) in Pisces

277.

Venus at greatest brightness Venus reaches its greatest brightness in the evening sky. Tue, 25 Sep 2018 at 00:18 EDT (2,080 days ago) in Virgo

278.

NGC 55 is well placed NGC 55 (mag 8.2), a barred irregular galaxy in Sculptor culminates at around midnight local time. Tue, 25 Sep 2018 (2,080 days ago) in Sculptor

279.

Daytime Sextantid meteor shower 2018 The Daytime Sextantid meteor shower reaches its peak. Thu, 27 Sep 2018 (2,078 days ago) in Sextans

280.

136472 Makemake at solar conjunction 136472 Makemake is unobservable as it passes around the far side of the Sun – marking the end of one apparition and the beginning of the next. Thu, 27 Sep 2018 at 15:46 EDT (2,078 days ago) in Coma Berenices