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Astronomy

Dec. 11, 2017 Rise Solar Noon Set
Actual Time 6:48 AM MST 11:50 AM MST 4:52 PM MST
Civil Twilight 6:21 AM MST   5:19 PM MST
Nautical Twilight 5:50 AM MST   5:49 PM MST
Astronomical Twilight 5:20 AM MST   6:19 PM MST
Altitude -0.8° 34.5° -0.8°
Azimuth 117.0° 180.0° 242.9°
Hour Angle of the Sun 75.5° 75.4° -75.4°
Mean Anomaly of the Sun 337.23° 337.43° 337.64°
Obliquity 23.44° 23.44° 23.44°
Right Ascension of the Sun -101.19° -100.96° -100.73°
Sun Declination -23.04° -23.05° -23.07°
Moon 12:40 AM MST   1:10 PM MST
Length of Visible Light 10h 57m
Length of Day
10h 03m
Last Quarter, 36% of the Moon is Illuminated
Dec 11
Last Quarter
Dec 18
New
Dec 26
First Quarter
Jan 1
Full
Jan 8
Last Quarter