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Astronomy

Dec. 15, 2017 Rise Solar Noon Set
Actual Time 7:00 AM CST 12:05 PM CST 5:10 PM CST
Civil Twilight 6:33 AM CST   5:36 PM CST
Nautical Twilight 6:03 AM CST   6:06 PM CST
Astronomical Twilight 5:33 AM CST   6:36 PM CST
Altitude -0.8° 35.9° -0.8°
Azimuth 116.8° 180.0° 243.1°
Hour Angle of the Sun 76.2° 76.2° -76.2°
Mean Anomaly of the Sun 341.14° 341.35° 341.55°
Obliquity 23.44° 23.44° 23.44°
Right Ascension of the Sun -96.81° -96.58° -96.35°
Sun Declination -23.29° -23.30° -23.31°
Moon 4:32 AM CST   3:42 PM CST
Length of Visible Light 11h 03m
Length of Day
10h 10m
Waning Crescent, 8% of the Moon is Illuminated
Dec 15
Waning Crescent
Dec 18
New
Dec 26
First Quarter
Jan 1
Full
Jan 8
Last Quarter