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Astronomy

Dec. 13, 2017 Rise Solar Noon Set
Actual Time 6:55 AM CST 12:02 PM CST 5:09 PM CST
Civil Twilight 6:29 AM CST   5:35 PM CST
Nautical Twilight 5:59 AM CST   6:05 PM CST
Astronomical Twilight 5:30 AM CST   6:34 PM CST
Altitude -0.8° 36.6° -0.8°
Azimuth 116.6° 180.0° 243.4°
Hour Angle of the Sun 76.6° 76.6° -76.6°
Mean Anomaly of the Sun 339.16° 339.37° 339.58°
Obliquity 23.44° 23.44° 23.44°
Right Ascension of the Sun -99.03° -98.79° -98.56°
Sun Declination -23.18° -23.19° -23.20°
Moon 2:41 AM CST   2:29 PM CST
Length of Visible Light 11h 06m
Length of Day
10h 13m
Waning Crescent, 19% of the Moon is Illuminated
Dec 13
Waning Crescent
Dec 18
New
Dec 26
First Quarter
Jan 1
Full
Jan 8
Last Quarter