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Astronomy

Dec. 16, 2017 Rise Solar Noon Set
Actual Time 7:42 AM MST 12:08 PM MST 4:33 PM MST
Civil Twilight 7:08 AM MST   5:07 PM MST
Nautical Twilight 6:32 AM MST   5:43 PM MST
Astronomical Twilight 5:56 AM MST   6:19 PM MST
Altitude -0.8° 22.3° -0.8°
Azimuth 122.7° 180.0° 237.3°
Hour Angle of the Sun 66.4° 66.4° -66.4°
Mean Anomaly of the Sun 342.19° 342.37° 342.56°
Obliquity 23.44° 23.44° 23.44°
Right Ascension of the Sun -95.63° -95.42° -95.22°
Sun Declination -23.33° -23.34° -23.35°
Moon 5:58 AM MST   3:57 PM MST
Length of Visible Light 9h 58m
Length of Day
8h 51m
Waning Crescent, 3% of the Moon is Illuminated
Dec 16
Waning Crescent
Dec 18
New
Dec 26
First Quarter
Jan 1
Full
Jan 8
Last Quarter