241.

κ-Cygnid meteor shower 2013 The κ-Cygnid meteor shower reaches its peak. Sat, 17 Aug 2013 (3,906 days ago) in Draco

242.

Supernova SN2013ex discovered A new supernova has been discovered in NGC 1954. Sun, 18 Aug 2013 (3,904 days ago)

243.

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, 18 Aug 2013 at 21:25 EDT (3,905 days ago) in Sagittarius

244.

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. Mon, 19 Aug 2013 at 11:57 EDT (3,904 days ago) in Capricornus

245.

Full Moon The Moon reaches full phase and is visible for much of the night. Tue, 20 Aug 2013 at 21:44 EDT (3,903 days ago) in Aquarius

246.

Mercury at superior solar conjunction Mercury passes around the far side of the Sun. Sat, 24 Aug 2013 at 17:04 EDT (3,899 days ago) in Leo

247.

August Naked Astronomy podcast released This autumn, the Gaia spacecraft will be launched on a mission to Sat, 24 Aug 2013 (3,898 days ago)

248.

Neptune at opposition Neptune lies in the opposite direction to the Sun in the sky, making it optimally positioned to be observable for much of the night. Mon, 26 Aug 2013 at 21:34 EDT (3,897 days ago) in Aquarius

249.

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. Wed, 28 Aug 2013 at 05:35 EDT (3,895 days ago) in Taurus

250.

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, 30 Aug 2013 at 19:45 EDT (3,893 days ago) in Gemini

251.

Supernova SN2013ff discovered A new supernova has been discovered in NGC 2748. Fri, 30 Aug 2013 (3,892 days ago)

252.

Close approach of the Moon and Jupiter The Moon and Jupiter pass close to each other. Sat, 31 Aug 2013 at 11:25 EDT (3,892 days ago) in Gemini

253.

Conjunction of the Moon and Jupiter The Moon and Jupiter share the same right ascension, at a separation of 4°29'. Sat, 31 Aug 2013 at 12:43 EDT (3,892 days ago) in Gemini

254.

Aurigid meteor shower 2013 The Aurigid meteor shower reaches its peak. Sat, 31 Aug 2013 (3,891 days ago) in Auriga

255.

Conjunction of the Moon and Mars The Moon and Mars share the same right ascension, at a separation of 6°13'. Mon, 02 Sep 2013 at 05:39 EDT (3,890 days ago) in Cancer

256.

New Moon The Moon disappears into the Sun's glare for a few days. Thu, 05 Sep 2013 at 07:37 EDT (3,887 days ago) in Sextans

257.

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. Sat, 07 Sep 2013 at 11:18 EDT (3,885 days ago) in Virgo

258.

Lunar occultation of Spica The Moon will pass in front of Spica (Alpha Virginis), creating a lunar occultation visible from countries and territories including Saudi Arabia, Sudan, Yemen and Ethiopia amongst others. Sun, 08 Sep 2013 at 10:55 EDT (3,884 days ago) in Virgo

259.

Close approach of the Moon and Venus The Moon and Venus pass close to each other. Sun, 08 Sep 2013 at 16:51 EDT (3,884 days ago) in Virgo

260.

Lunar occultation of Venus The Moon will pass in front of Venus, creating a lunar occultation visible from countries and territories including Argentina, Chile, Brazil and Uruguay amongst others. Sun, 08 Sep 2013 at 16:51 EDT (3,884 days ago) in Virgo