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Astronomy

Dec. 12, 2017 Rise Solar Noon Set
Actual Time 7:49 AM CST 12:12 PM CST 4:34 PM CST
Civil Twilight 7:14 AM CST   5:09 PM CST
Nautical Twilight 6:37 AM CST   5:46 PM CST
Astronomical Twilight 6:01 AM CST   6:22 PM CST
Altitude -0.8° 21.4° -0.8°
Azimuth 123.0° 180.0° 237.0°
Hour Angle of the Sun 65.7° 65.7° -65.7°
Mean Anomaly of the Sun 338.21° 338.39° 338.57°
Obliquity 23.44° 23.44° 23.44°
Right Ascension of the Sun -100.09° -99.89° -99.69°
Sun Declination -23.11° -23.12° -23.14°
Moon 2:00 AM CST   1:58 PM CST
Length of Visible Light 9h 54m
Length of Day
8h 45m
Waning Crescent, 30% of the Moon is Illuminated
Dec 12
Waning Crescent
Dec 18
New
Dec 26
First Quarter
Jan 1
Full
Jan 8
Last Quarter