301.

Conjunction of the Moon and Venus The Moon and Venus share the same right ascension, at a separation of 23'. Sat, 13 Sep 2031 at 06:17 EDT (2,615 days away) in Cancer

302.

Close approach of the Moon and Venus The Moon and Venus pass close to each other. Sat, 13 Sep 2031 at 06:32 EDT (2,615 days away) in Cancer

303.

Lunar occultation of Venus The Moon will pass in front of Venus, creating a lunar occultation visible from Africa, the Americas, Europe, Western Asia, Corsica, Guernsey, the Portuguese Azores, Madeira, the Savage Islands, Menorca, Mallorca, Ibiza, Isla de Alborán, Melilla, Islas Chafarinas, the Canary Islands, Northern Ireland and RAF Akrotiri. Sat, 13 Sep 2031 at 06:32 EDT (2,615 days away) in Cancer

304.

Venus at greatest brightness Venus reaches its greatest brightness in the dawn sky. Mon, 15 Sep 2031 at 22:24 EDT (2,617 days away) in Cancer

305.

New Moon The Moon disappears into the Sun's glare for a few days. Tue, 16 Sep 2031 at 14:48 EDT (2,618 days away) in Leo

306.

Lunar occultation of Spica The Moon will pass in front of Spica (Alpha Virginis), creating a lunar occultation visible from French Polynesia and Cook Islands. Thu, 18 Sep 2031 at 23:47 EDT (2,620 days away) in Virgo

307.

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. Fri, 19 Sep 2031 at 00:05 EDT (2,621 days away) in Virgo

308.

Lunar occultation of Beta1 Scorpii The Moon will pass in front of Beta1 Scorpii (Acrab), creating a lunar occultation visible from Mexico, Ecuador and Clipperton Island. Sun, 21 Sep 2031 at 22:16 EDT (2,623 days away) in Scorpius

309.

Conjunction of the Moon and Mars The Moon and Mars share the same right ascension, at a separation of 4°26'. Mon, 22 Sep 2031 at 22:36 EDT (2,624 days away) in Ophiuchus

310.

Close approach of the Moon, Jupiter and Mars The Moon, Jupiter and Mars pass close to one another. Mon, 22 Sep 2031 at 22:42 EDT (2,624 days away) in Ophiuchus

311.

September equinox Day and night have equal length, marking the beginning of autumn in the northern hemisphere and spring in the southern hemisphere. Tue, 23 Sep 2031 at 01:20 EDT (2,625 days away) in Virgo

312.

Close approach of the Moon and Jupiter The Moon and Jupiter pass close to each other. Tue, 23 Sep 2031 at 04:42 EDT (2,625 days away) in Ophiuchus

313.

Conjunction of the Moon and Jupiter The Moon and Jupiter share the same right ascension, at a separation of 2°27'. Tue, 23 Sep 2031 at 04:45 EDT (2,625 days away) in Ophiuchus

314.

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. Tue, 23 Sep 2031 at 21:20 EDT (2,625 days away) in Sagittarius

315.

Mercury at superior solar conjunction Mercury passes around the far side of the Sun. Tue, 23 Sep 2031 at 21:37 EDT (2,625 days away) in Virgo

316.

NGC 55 is well placed NGC 55 (mag 8.2), a barred irregular galaxy in Sculptor culminates at around midnight local time. Thu, 25 Sep 2031 (2,627 days away) in Sculptor

317.

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. Sat, 27 Sep 2031 at 03:05 EDT (2,629 days away) in Aquarius

318.

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. Sat, 27 Sep 2031 (2,629 days away) in Tucana

319.

Daytime Sextantid meteor shower 2031 The Daytime Sextantid meteor shower reaches its peak. Sat, 27 Sep 2031 (2,630 days away) in Sextans

320.

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. Sun, 28 Sep 2031 at 10:28 EDT (2,630 days away) in Aquarius