4921.

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, 27 Sep 2013 at 14:16 EDT (3,935 days ago) in Gemini

4922.

Daytime Sextantid meteor shower 2013 The Daytime Sextantid meteor shower reaches its peak. Fri, 27 Sep 2013 (3,935 days ago) in Sextans

4923.

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. Thu, 26 Sep 2013 at 23:56 EDT (3,936 days ago) in Orion

4924.

Mercury at aphelion Mercury passes the furthest point along its orbit from the Sun. Tue, 24 Sep 2013 at 20:42 EDT (3,938 days ago) in Virgo

4925.

Supernova ASASSN-13dd discovered A new supernova has been discovered in NGC 2765. Mon, 23 Sep 2013 (3,938 days ago)

4926.

Asteroid 89 Julia at opposition Asteroid 89 Julia makes closest approach to the Earth. Mon, 23 Sep 2013 at 07:58 EDT (3,939 days ago) in Pegasus

4927.

September equinox Day and night have equal length, marking the beginning of autumn in the northern hemisphere and spring in the southern hemisphere. Sun, 22 Sep 2013 at 16:48 EDT (3,940 days ago) in Virgo

4928.

1 Ceres at perihelion 1 Ceres passes its orbit's closest point to the Sun. Sun, 22 Sep 2013 at 13:37 EDT (3,940 days ago) in Leo

4929.

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. Sun, 22 Sep 2013 at 06:07 EDT (3,940 days ago) in Coma Berenices

4930.

Conjunction of Venus and Saturn Venus and Saturn share the same right ascension, at a separation of 3°45'. Thu, 19 Sep 2013 at 20:17 EDT (3,943 days ago) in Libra

4931.

Full Moon The Moon reaches full phase and is visible for much of the night. Thu, 19 Sep 2013 at 07:12 EDT (3,943 days ago) in Pisces

4932.

Close approach of Venus and Saturn Venus and Saturn pass within 3°28' of each other. Wed, 18 Sep 2013 at 11:54 EDT (3,944 days ago) in Libra

4933.

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. Tue, 17 Sep 2013 at 05:21 EDT (3,945 days ago) in Aquarius

4934.

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. Sun, 15 Sep 2013 at 12:30 EDT (3,947 days ago) in Capricornus

4935.

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, 12 Sep 2013 at 13:08 EDT (3,950 days ago) in Ophiuchus

4936.

Lunar occultation of Beta1 Scorpii The Moon will pass in front of Beta1 Scorpii (Acrab), creating a lunar occultation visible from Mongolia and Russia. Wed, 11 Sep 2013 at 08:17 EDT (3,951 days ago) in Scorpius

4937.

Conjunction of the Moon and Saturn The Moon and Saturn share the same right ascension, at a separation of 2°21'. Mon, 09 Sep 2013 at 13:08 EDT (3,953 days ago) in Libra

4938.

Close approach of the Moon and Saturn The Moon and Saturn pass close to each other. Mon, 09 Sep 2013 at 12:09 EDT (3,953 days ago) in Libra

4939.

Asteroid 324 Bamberga at opposition Asteroid 324 Bamberga makes closest approach to the Earth. Mon, 09 Sep 2013 at 07:58 EDT (3,953 days ago) in Pisces

4940.

September ε-Perseid meteor shower 2013 The September ε-Perseid meteor shower reaches its peak. Mon, 09 Sep 2013 (3,953 days ago) in Perseus