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Astronomy

Dec. 13, 2017 Rise Solar Noon Set
Actual Time 8:50 AM CST 12:58 PM CST 5:05 PM CST
Civil Twilight 8:13 AM CST   5:43 PM CST
Nautical Twilight 7:32 AM CST   6:23 PM CST
Astronomical Twilight 6:53 AM CST   7:02 PM CST
Altitude -0.8° 17.6° -0.8°
Azimuth 125.8° 180.0° 234.1°
Hour Angle of the Sun 61.9° 61.9° -61.8°
Mean Anomaly of the Sun 339.24° 339.41° 339.58°
Obliquity 23.44° 23.44° 23.44°
Right Ascension of the Sun -98.94° -98.75° -98.56°
Sun Declination -23.18° -23.19° -23.20°
Moon 3:54 AM CST   3:07 PM CST
Length of Visible Light 9h 29m
Length of Day
8h 15m
Waning Crescent, 21% of the Moon is Illuminated
Dec 13
Waning Crescent
Dec 18
New
Dec 26
First Quarter
Jan 1
Full
Jan 8
Last Quarter