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Astronomy

Dec. 13, 2017 Rise Solar Noon Set
Actual Time 7:33 AM CST 12:17 PM CST 5:01 PM CST
Civil Twilight 7:03 AM CST   5:31 PM CST
Nautical Twilight 6:30 AM CST   6:05 PM CST
Astronomical Twilight 5:57 AM CST   6:37 PM CST
Altitude -0.8° 27.9° -0.8°
Azimuth 119.6° 180.0° 240.4°
Hour Angle of the Sun 71.0° 71.0° -71.0°
Mean Anomaly of the Sun 339.19° 339.38° 339.58°
Obliquity 23.44° 23.44° 23.44°
Right Ascension of the Sun -99.00° -98.78° -98.56°
Sun Declination -23.18° -23.19° -23.20°
Moon 3:03 AM CST   2:37 PM CST
Length of Visible Light 10h 28m
Length of Day
9h 28m
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