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    Articles > September 2011
 
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  Sky Calendar -- September 2011
1 Moon near Spica (evening sky) at 8h UT.
3 Mercury at greatest elongation, 18° west of Sun (morning sky) at 6h UT. Mag -0.2.
4 Moon near Antares (evening sky) at 15h UT.
4 First Quarter Moon at 17:39 UT.
8 Mars 5.9° S. of Pollux (52° from Sun, morning sky) at 14h UT. Mags. +1.4 and +1.2.
9 Mercury 0.67° N. of Regulus (16° from Sun, morning sky) at 3h UT. Mags. -0.9 and +1.3.
12 Full Moon at 9:26 UT.
Full Moon Names (Wikipedia)
15 Moon at apogee (farthest from Earth) at 6h UT (distance 406,065 km; angular size 29.4').
16 Moon near Jupiter (morning sky) at 17h UT. Mag. -2.8.
18 Moon near the Pleiades (morning sky) at 6h UT.
Pleiades (star cluster) (Wikipedia)
19 Moon near Aldebaran (morning sky) at 4h UT.
20 Last Quarter Moon at 13:39 UT.
22 Moon near Pollux (morning sky) at 13h UT.
23 Moon near Mars (58° from Sun, morning sky) at 4h UT. Mag. +1.3.
23 September equinox at 9:06 UT. The time when the Sun reaches the point along the ecliptic where it crosses into the southern celestial hemisphere marking the start of autumn in the Northern Hemisphere and spring in the Southern Hemisphere.
Equinox (Wikipedia)
23 Moon near Beehive cluster (morning sky) at 15h UT.
25 Moon near Regulus (32° from Sun, morning sky) at 3h UT.
26 Uranus at opposition at 0h UT. Mag. +5.7.
27 New Moon at 11:08 UT. Start of lunation 1098.
Lunation Number (Wikipedia)
28 Moon at perigee (closest to Earth) at 1h UT (357,557 km; 33.4').
28 Moon near Venus (12° from Sun, evening sky) at 6h UT. Mag. -3.9.
28 Mercury at superior conjunction with the Sun at 20h UT. The planet passes into the evening sky.
28 Moon near Spica (19° from Sun, evening sky) at 21h UT.
All times Universal Time (UT). USA Eastern Daylight Time = UT - 4 hours.

Clear skies till next month!

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