281.

Close approach of the Moon and Collinder 50 The Moon and Collinder 50 pass close to each other. Mon, 01 Sep 1980 at 10:24 EDT (15,936 days ago) in Taurus

282.

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. Mon, 01 Sep 1980 at 14:08 EDT (15,936 days ago) in Taurus

283.

Lunar occultation of Aldebaran The Moon will pass in front of Aldebaran (Alpha Tauri), creating a lunar occultation visible from countries and territories including China, Russia, Mongolia and Japan amongst others. Mon, 01 Sep 1980 at 14:14 EDT (15,936 days ago) in Taurus

284.

Conjunction of the Moon and Venus The Moon and Venus share the same right ascension, at a separation of 2'22". Fri, 05 Sep 1980 at 05:44 EDT (15,932 days ago) in Cancer

285.

Close approach of the Moon and Venus The Moon and Venus pass close to each other. Fri, 05 Sep 1980 at 05:44 EDT (15,932 days ago) in Cancer

286.

Lunar occultation of Venus The Moon will pass in front of Venus, creating a lunar occultation visible from Africa, South America, the Caribbean, Gibraltar, Saudi Arabia, Spain, Yemen, Bonaire, Saint Eustatius and Saba, Grenada, Navassa Island, the Portuguese Azores, Madeira, the Savage Islands, Melilla, Islas Chafarinas and the Canary Islands. Fri, 05 Sep 1980 at 05:44 EDT (15,932 days ago) in Cancer

287.

September ε-Perseid meteor shower 1980 The September ε-Perseid meteor shower reaches its peak. Mon, 08 Sep 1980 (15,929 days ago) in Perseus

288.

Venus at highest altitude in morning sky Venus is bright and well placed in the dawn sky. Tue, 09 Sep 1980 (15,928 days ago) in Gemini

289.

New Moon The Moon disappears into the Sun's glare for a few days. Tue, 09 Sep 1980 at 06:01 EDT (15,928 days ago) in Leo

290.

Conjunction of the Moon and Mercury The Moon and Mercury share the same right ascension, at a separation of 2°55'. Wed, 10 Sep 1980 at 07:21 EDT (15,927 days ago) in Virgo

291.

136108 Haumea at solar conjunction 136108 Haumea is unobservable as it passes around the far side of the Sun – marking the end of one apparition and the beginning of the next. Wed, 10 Sep 1980 at 12:41 EDT (15,927 days ago) in Leo

292.

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, 12 Sep 1980 at 02:44 EDT (15,925 days ago) in Virgo

293.

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, 12 Sep 1980 at 04:43 EDT (15,925 days ago) in Virgo

294.

Jupiter at apogee Jupiter reaches its furthest point from the Earth, as it passes around the far side of the Sun. Fri, 12 Sep 1980 at 15:40 EDT (15,925 days ago) in Leo

295.

Jupiter at solar conjunction Jupiter is unobservable as it passes around the far side of the Sun – marking the end of one apparition and the beginning of the next. Sat, 13 Sep 1980 at 05:44 EDT (15,924 days ago) in Leo

296.

Conjunction of the Moon and Mars The Moon and Mars share the same right ascension, at a separation of 5°54'. Sat, 13 Sep 1980 at 14:05 EDT (15,924 days ago) in Libra

297.

Close approach of the Moon and Mars The Moon and Mars pass close to each other. Sat, 13 Sep 1980 at 17:52 EDT (15,924 days ago) in Libra

298.

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, 17 Sep 1980 at 09:54 EDT (15,920 days ago) in Ophiuchus

299.

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, 21 Sep 1980 at 23:35 EDT (15,916 days ago) in Capricornus

300.

September equinox Day and night have equal length, marking the beginning of autumn in the northern hemisphere and spring in the southern hemisphere. Mon, 22 Sep 1980 at 17:03 EDT (15,915 days ago) in Virgo