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Astronomy

Dec. 13, 2017 Rise Solar Noon Set
Actual Time 6:29 AM CST 11:57 AM CST 5:26 PM CST
Civil Twilight 6:05 AM CST   5:50 PM CST
Nautical Twilight 5:38 AM CST   6:17 PM CST
Astronomical Twilight 5:11 AM CST   6:44 PM CST
Altitude -0.8° 46.8° -0.8°
Azimuth 114.4° 180.0° 245.5°
Hour Angle of the Sun 82.0° 82.0° -82.0°
Mean Anomaly of the Sun 339.10° 339.33° 339.55°
Obliquity 23.44° 23.44° 23.44°
Right Ascension of the Sun -99.09° -98.84° -98.59°
Sun Declination -23.17° -23.19° -23.20°
Moon 2:29 AM CST   2:30 PM CST
Length of Visible Light 11h 44m
Length of Day
10h 56m
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