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Astronomy

Dec. 15, 2017 Rise Solar Noon Set
Actual Time 7:42 AM CST 12:16 PM CST 4:50 PM CST
Civil Twilight 7:10 AM CST   5:22 PM CST
Nautical Twilight 6:35 AM CST   5:57 PM CST
Astronomical Twilight 6:01 AM CST   6:31 PM CST
Altitude -0.8° 24.7° -0.8°
Azimuth 121.3° 180.0° 238.7°
Hour Angle of the Sun 68.5° 68.5° -68.5°
Mean Anomaly of the Sun 341.17° 341.35° 341.54°
Obliquity 23.44° 23.44° 23.44°
Right Ascension of the Sun -96.78° -96.57° -96.36°
Sun Declination -23.29° -23.30° -23.31°
Moon 5:02 AM CST (12/15)   3:35 PM CST (12/15)
Length of Visible Light 10h 11m
Length of Day
9h 08m
Waning Crescent, 4% of the Moon is Illuminated
Dec 16
Waning Crescent
Dec 18
New
Dec 26
First Quarter
Jan 1
Full
Jan 8
Last Quarter