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Astronomy

Dec. 15, 2017 Rise Solar Noon Set
Actual Time 7:19 AM MST 11:58 AM MST 4:37 PM MST
Civil Twilight 6:48 AM MST   5:08 PM MST
Nautical Twilight 6:14 AM MST   5:42 PM MST
Astronomical Twilight 5:41 AM MST   6:15 PM MST
Altitude -0.8° 26.2° -0.8°
Azimuth 120.5° 180.0° 239.5°
Hour Angle of the Sun 69.7° 69.7° -69.7°
Mean Anomaly of the Sun 341.19° 341.38° 341.57°
Obliquity 23.44° 23.44° 23.44°
Right Ascension of the Sun -96.75° -96.54° -96.32°
Sun Declination -23.29° -23.30° -23.31°
Moon 4:43 AM MST   3:21 PM MST
Length of Visible Light 10h 19m
Length of Day
9h 17m
Waning Crescent, 7% of the Moon is Illuminated
Dec 15
Waning Crescent
Dec 18
New
Dec 26
First Quarter
Jan 1
Full
Jan 8
Last Quarter