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Astronomy

Dec. 13, 2017 Rise Solar Noon Set
Actual Time 7:49 AM CST 12:28 PM CST 5:06 PM CST
Civil Twilight 7:19 AM CST   5:37 PM CST
Nautical Twilight 6:44 AM CST   6:11 PM CST
Astronomical Twilight 6:11 AM CST   6:45 PM CST
Altitude -0.8° 25.9° -0.8°
Azimuth 120.5° 180.0° 239.4°
Hour Angle of the Sun 69.5° 69.5° -69.5°
Mean Anomaly of the Sun 339.20° 339.39° 339.58°
Obliquity 23.44° 23.44° 23.44°
Right Ascension of the Sun -98.99° -98.77° -98.56°
Sun Declination -23.18° -23.19° -23.20°
Moon 3:15 AM CST (12/13)   2:46 PM CST (12/13)
Length of Visible Light 10h 18m
Length of Day
9h 16m
Waning Crescent, 16% of the Moon is Illuminated
Dec 13
Waning Crescent
Dec 18
New
Dec 26
First Quarter
Jan 1
Full
Jan 8
Last Quarter