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Astronomy

Dec. 13, 2017 Rise Solar Noon Set
Actual Time 7:20 AM CST 12:10 PM CST 5:00 PM CST
Civil Twilight 6:51 AM CST   5:29 PM CST
Nautical Twilight 6:19 AM CST   6:01 PM CST
Astronomical Twilight 5:47 AM CST   6:33 PM CST
Altitude -0.8° 29.9° -0.8°
Azimuth 118.8° 180.0° 241.2°
Hour Angle of the Sun 72.4° 72.4° -72.4°
Mean Anomaly of the Sun 339.18° 339.38° 339.58°
Obliquity 23.44° 23.44° 23.44°
Right Ascension of the Sun -99.01° -98.79° -98.56°
Sun Declination -23.18° -23.19° -23.20°
Moon 2:54 AM CST   2:32 PM CST
Length of Visible Light 10h 37m
Length of Day
9h 39m
Waning Crescent, 17% of the Moon is Illuminated
Dec 13
Waning Crescent
Dec 18
New
Dec 26
First Quarter
Jan 1
Full
Jan 8
Last Quarter