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Astronomy

Dec. 11, 2017 Rise Solar Noon Set
Actual Time 7:10 AM MST 11:45 AM MST 4:19 PM MST
Civil Twilight 6:38 AM MST   4:51 PM MST
Nautical Twilight 6:03 AM MST   5:26 PM MST
Astronomical Twilight 5:29 AM MST   6:00 PM MST
Altitude -0.8° 24.8° -0.8°
Azimuth 121.0° 180.0° 239.0°
Hour Angle of the Sun 68.7° 68.7° -68.7°
Mean Anomaly of the Sun 337.24° 337.43° 337.62°
Obliquity 23.44° 23.44° 23.44°
Right Ascension of the Sun -101.18° -100.97° -100.76°
Sun Declination -23.04° -23.05° -23.07°
Moon 12:31 AM MST   1:05 PM MST
Length of Visible Light 10h 13m
Length of Day
9h 09m
Waning Crescent, 36% of the Moon is Illuminated
Dec 11
Waning Crescent
Dec 18
New
Dec 26
First Quarter
Jan 1
Full
Jan 8
Last Quarter