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Astronomy

Dec. 17, 2017 Rise Solar Noon Set
Actual Time 7:43 AM MST 12:05 PM MST 4:26 PM MST
Civil Twilight 7:09 AM MST   5:01 PM MST
Nautical Twilight 6:32 AM MST   5:38 PM MST
Astronomical Twilight 5:55 AM MST   6:14 PM MST
Altitude -0.8° 21.2° -0.8°
Azimuth 123.4° 180.0° 236.6°
Hour Angle of the Sun 65.4° 65.4° -65.4°
Mean Anomaly of the Sun 343.18° 343.36° 343.54°
Obliquity 23.44° 23.44° 23.44°
Right Ascension of the Sun -94.52° -94.32° -94.12°
Sun Declination -23.37° -23.38° -23.38°
Moon 6:55 AM MST (12/17)   4:29 PM MST (12/17)
Length of Visible Light 9h 51m
Length of Day
8h 43m
Waning Crescent, 0% of the Moon is Illuminated
Dec 17
Waning Crescent
Dec 18
New
Dec 26
First Quarter
Jan 1
Full
Jan 8
Last Quarter