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Astronomy

Dec. 13, 2017 Rise Solar Noon Set
Actual Time 7:32 AM CST 12:12 PM CST 4:51 PM CST
Civil Twilight 7:01 AM CST   5:22 PM CST
Nautical Twilight 6:27 AM CST   5:56 PM CST
Astronomical Twilight 5:54 AM CST   6:29 PM CST
Altitude -0.8° 26.3° -0.8°
Azimuth 120.3° 180.0° 239.6°
Hour Angle of the Sun 69.8° 69.8° -69.8°
Mean Anomaly of the Sun 339.19° 339.38° 339.57°
Obliquity 23.44° 23.44° 23.44°
Right Ascension of the Sun -99.00° -98.79° -98.57°
Sun Declination -23.18° -23.19° -23.20°
Moon 2:58 AM CST   2:30 PM CST
Length of Visible Light 10h 20m
Length of Day
9h 18m
Waning Crescent, 18% of the Moon is Illuminated
Dec 13
Waning Crescent
Dec 18
New
Dec 26
First Quarter
Jan 1
Full
Jan 8
Last Quarter