5861.

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. Sun, 06 Feb 2011 at 18:11 EDT (4,900 days ago) in Pisces

5862.

Supernova SN2011aa discovered A new supernova has been discovered in UGC 3906. Sat, 05 Feb 2011 (4,900 days ago)

5863.

Mars at solar conjunction Mars is unobservable as it passes around the far side of the Sun – marking the end of one apparition and the beginning of the next. Fri, 04 Feb 2011 at 11:03 EDT (4,902 days ago) in Capricornus

5864.

New Moon The Moon disappears into the Sun's glare for a few days. Wed, 02 Feb 2011 at 21:32 EDT (4,904 days ago) in Aquarius

5865.

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, 01 Feb 2011 at 16:15 EDT (4,905 days ago) in Sagittarius

5866.

Conjunction of the Moon and Mercury The Moon and Mercury share the same right ascension, at a separation of 3°35'. Tue, 01 Feb 2011 at 13:13 EDT (4,905 days ago) in Sagittarius

5867.

Mercury at aphelion Mercury passes the furthest point along its orbit from the Sun. Mon, 31 Jan 2011 at 03:42 EDT (4,906 days ago) in Sagittarius

5868.

1 Ceres at solar conjunction 1 Ceres 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, 30 Jan 2011 at 11:14 EDT (4,907 days ago) in Capricornus

5869.

Close approach of the Moon, Venus and Mercury The Moon, Venus and Mercury pass close to one another. Sat, 29 Jan 2011 at 23:01 EDT (4,907 days ago) in Ophiuchus

5870.

Conjunction of the Moon and Venus The Moon and Venus share the same right ascension, at a separation of 3°28'. Sat, 29 Jan 2011 at 22:36 EDT (4,908 days ago) in Ophiuchus

5871.

Lunar occultation of Delta Scorpii The Moon will pass in front of Delta Scorpii (Dschubba), creating a lunar occultation visible from Pitcairn. Fri, 28 Jan 2011 at 06:55 EDT (4,909 days ago) in Scorpius

5872.

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, 26 Jan 2011 at 07:57 EDT (4,911 days ago) in Virgo

5873.

Saturn enters retrograde motion Saturn reverses its direction of motion across the sky. Wed, 26 Jan 2011 at 01:10 EDT (4,911 days ago) in Virgo

5874.

Conjunction of the Moon and Saturn The Moon and Saturn share the same right ascension, at a separation of 8°05'. Tue, 25 Jan 2011 at 04:47 EDT (4,912 days ago) in Virgo

5875.

Asteroid 23 Thalia at opposition Asteroid 23 Thalia makes closest approach to the Earth. Mon, 24 Jan 2011 at 04:34 EDT (4,913 days ago) in Lynx

5876.

Asteroid 7 Iris at opposition Asteroid 7 Iris makes closest approach to the Earth. Sun, 23 Jan 2011 at 11:46 EDT (4,914 days ago) in Cancer

5877.

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. Fri, 21 Jan 2011 at 19:09 EDT (4,916 days ago) in Leo

5878.

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. Thu, 20 Jan 2011 at 03:43 EDT (4,917 days ago) in Cancer

5879.

Full Moon The Moon reaches full phase and is visible for much of the night. Wed, 19 Jan 2011 at 16:21 EDT (4,918 days ago) in Cancer

5880.

γ-Ursae Minorid meteor shower 2011 The γ-Ursae Minorid meteor shower reaches its peak. Wed, 19 Jan 2011 (4,918 days ago) in Ursa Minor