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Astronomy

Dec. 15, 2017 Rise Solar Noon Set
Actual Time 7:19 AM CST 11:50 AM CST 4:20 PM CST
Civil Twilight 6:47 AM CST   4:52 PM CST
Nautical Twilight 6:11 AM CST   5:28 PM CST
Astronomical Twilight 5:36 AM CST   6:03 PM CST
Altitude -0.8° 23.5° -0.8°
Azimuth 121.9° 180.0° 238.1°
Hour Angle of the Sun 67.5° 67.5° -67.5°
Mean Anomaly of the Sun 341.15° 341.34° 341.52°
Obliquity 23.44° 23.44° 23.44°
Right Ascension of the Sun -96.80° -96.59° -96.38°
Sun Declination -23.29° -23.30° -23.31°
Moon 4:37 AM CST (12/15)   3:05 PM CST (12/15)
Length of Visible Light 10h 05m
Length of Day
9h 00m
Waning Crescent, 4% of the Moon is Illuminated
Dec 15
Waning Crescent
Dec 18
New
Dec 26
First Quarter
Jan 1
Full
Jan 8
Last Quarter