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Astronomy

Dec. 12, 2017 Rise Solar Noon Set
Actual Time 6:57 AM CST 11:57 AM CST 4:56 PM CST
Civil Twilight 6:30 AM CST   5:24 PM CST
Nautical Twilight 5:59 AM CST   5:55 PM CST
Astronomical Twilight 5:29 AM CST   6:25 PM CST
Altitude -0.8° 33.6° -0.8°
Azimuth 117.4° 180.0° 242.6°
Hour Angle of the Sun 74.9° 74.9° -74.8°
Mean Anomaly of the Sun 338.18° 338.38° 338.59°
Obliquity 23.44° 23.44° 23.44°
Right Ascension of the Sun -100.13° -99.90° -99.67°
Sun Declination -23.11° -23.12° -23.14°
Moon 1:42 AM CST   1:49 PM CST
Length of Visible Light 10h 53m
Length of Day
9h 59m
Waning Crescent, 27% of the Moon is Illuminated
Dec 12
Waning Crescent
Dec 18
New
Dec 26
First Quarter
Jan 1
Full
Jan 8
Last Quarter