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Astronomy

Dec. 12, 2017 Rise Solar Noon Set
Actual Time 7:20 AM CST 12:18 PM CST 5:16 PM CST
Civil Twilight 6:52 AM CST   5:44 PM CST
Nautical Twilight 6:21 AM CST   6:15 PM CST
Astronomical Twilight 5:51 AM CST   6:45 PM CST
Altitude -0.8° 33.0° -0.8°
Azimuth 117.6° 180.0° 242.4°
Hour Angle of the Sun 74.5° 74.5° -74.5°
Mean Anomaly of the Sun 338.19° 338.40° 338.60°
Obliquity 23.44° 23.44° 23.44°
Right Ascension of the Sun -100.11° -99.88° -99.66°
Sun Declination -23.11° -23.12° -23.14°
Moon 2:04 AM CST (12/12)   2:10 PM CST (12/12)
Length of Visible Light 10h 51m
Length of Day
9h 55m
Waning Crescent, 22% of the Moon is Illuminated
Dec 13
Waning Crescent
Dec 18
New
Dec 26
First Quarter
Jan 1
Full
Jan 8
Last Quarter