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Astronomy

Dec. 13, 2017 Rise Solar Noon Set
Actual Time 7:22 AM CST 12:25 PM CST 5:28 PM CST
Civil Twilight 6:55 AM CST   5:55 PM CST
Nautical Twilight 6:25 AM CST   6:25 PM CST
Astronomical Twilight 5:55 AM CST   6:55 PM CST
Altitude -0.8° 35.0° -0.8°
Azimuth 117.0° 180.0° 243.0°
Hour Angle of the Sun 75.7° 75.7° -75.7°
Mean Anomaly of the Sun 339.18° 339.39° 339.60°
Obliquity 23.44° 23.44° 23.44°
Right Ascension of the Sun -99.01° -98.78° -98.54°
Sun Declination -23.18° -23.19° -23.20°
Moon 3:06 AM CST (12/13)   2:51 PM CST (12/13)
Length of Visible Light 10h 59m
Length of Day
10h 05m
Waning Crescent, 15% of the Moon is Illuminated
Dec 13
Waning Crescent
Dec 18
New
Dec 26
First Quarter
Jan 1
Full
Jan 8
Last Quarter