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Astronomy

Dec. 12, 2017 Rise Solar Noon Set
Actual Time 6:58 AM CST 11:50 AM CST 4:42 PM CST
Civil Twilight 6:30 AM CST   5:10 PM CST
Nautical Twilight 5:58 AM CST   5:42 PM CST
Astronomical Twilight 5:26 AM CST   6:14 PM CST
Altitude -0.8° 30.5° -0.8°
Azimuth 118.5° 180.0° 241.5°
Hour Angle of the Sun 72.9° 72.9° -72.9°
Mean Anomaly of the Sun 338.18° 338.38° 338.58°
Obliquity 23.44° 23.44° 23.44°
Right Ascension of the Sun -100.13° -99.91° -99.68°
Sun Declination -23.11° -23.12° -23.14°
Moon 1:35 AM CST   1:40 PM CST
Length of Visible Light 10h 40m
Length of Day
9h 43m
Waning Crescent, 28% of the Moon is Illuminated
Dec 12
Waning Crescent
Dec 18
New
Dec 26
First Quarter
Jan 1
Full
Jan 8
Last Quarter