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Astronomy

Dec. 17, 2017 Rise Solar Noon Set
Actual Time 7:48 AM MST 12:08 PM MST 4:27 PM MST
Civil Twilight 7:13 AM MST   5:02 PM MST
Nautical Twilight 6:35 AM MST   5:40 PM MST
Astronomical Twilight 5:59 AM MST   6:16 PM MST
Altitude -0.8° 20.7° -0.8°
Azimuth 123.7° 180.0° 236.2°
Hour Angle of the Sun 64.9° 64.9° -64.9°
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 6:59 AM MST (12/17)   4:30 PM MST (12/17)
Length of Visible Light 9h 48m
Length of Day
8h 39m
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