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Astronomy

Dec. 13, 2017 Rise Solar Noon Set
Actual Time 7:23 AM CST 11:50 AM CST 4:16 PM CST
Civil Twilight 6:50 AM CST   4:50 PM CST
Nautical Twilight 6:13 AM CST   5:26 PM CST
Astronomical Twilight 5:38 AM CST   6:02 PM CST
Altitude -0.8° 22.5° -0.8°
Azimuth 122.4° 180.0° 237.6°
Hour Angle of the Sun 66.7° 66.7° -66.6°
Mean Anomaly of the Sun 339.18° 339.36° 339.55°
Obliquity 23.44° 23.44° 23.44°
Right Ascension of the Sun -99.01° -98.80° -98.60°
Sun Declination -23.18° -23.19° -23.20°
Moon 2:39 AM CST   2:03 PM CST
Length of Visible Light 9h 59m
Length of Day
8h 53m
Waning Crescent, 19% of the Moon is Illuminated
Dec 13
Waning Crescent
Dec 18
New
Dec 26
First Quarter
Jan 1
Full
Jan 8
Last Quarter