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Astronomy

Dec. 13, 2017 Rise Solar Noon Set
Actual Time 8:18 AM CST 12:27 PM CST 4:37 PM CST
Civil Twilight 7:41 AM CST   5:14 PM CST
Nautical Twilight 7:01 AM CST   5:54 PM CST
Astronomical Twilight 6:22 AM CST   6:32 PM CST
Altitude -0.8° 18.1° -0.8°
Azimuth 125.5° 180.0° 234.5°
Hour Angle of the Sun 62.3° 62.3° -62.3°
Mean Anomaly of the Sun 339.22° 339.39° 339.56°
Obliquity 23.44° 23.44° 23.44°
Right Ascension of the Sun -98.96° -98.77° -98.58°
Sun Declination -23.18° -23.19° -23.20°
Moon 3:22 AM CST   2:37 PM CST
Length of Visible Light 9h 32m
Length of Day
8h 18m
Waning Crescent, 21% of the Moon is Illuminated
Dec 13
Waning Crescent
Dec 18
New
Dec 26
First Quarter
Jan 1
Full
Jan 8
Last Quarter