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Astronomy

Dec. 16, 2017 Rise Solar Noon Set
Actual Time 7:07 AM MST 11:58 AM MST 4:48 PM MST
Civil Twilight 6:38 AM MST   5:17 PM MST
Nautical Twilight 6:06 AM MST   5:49 PM MST
Astronomical Twilight 5:34 AM MST   6:21 PM MST
Altitude -0.8° 30.3° -0.8°
Azimuth 118.8° 180.0° 241.2°
Hour Angle of the Sun 72.6° 72.6° -72.6°
Mean Anomaly of the Sun 342.17° 342.37° 342.57°
Obliquity 23.44° 23.44° 23.44°
Right Ascension of the Sun -95.66° -95.43° -95.21°
Sun Declination -23.33° -23.34° -23.35°
Moon 5:30 AM MST   4:05 PM MST
Length of Visible Light 10h 38m
Length of Day
9h 41m
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