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Astronomy

Dec. 17, 2017 Rise Solar Noon Set
Actual Time 7:27 AM MST 12:25 PM MST 5:24 PM MST
Civil Twilight 7:00 AM MST   5:51 PM MST
Nautical Twilight 6:28 AM MST   6:22 PM MST
Astronomical Twilight 5:58 AM MST   6:53 PM MST
Altitude -0.8° 33.2° -0.8°
Azimuth 117.8° 180.0° 242.2°
Hour Angle of the Sun 74.6° 74.5° -74.5°
Mean Anomaly of the Sun 343.17° 343.37° 343.58°
Obliquity 23.44° 23.44° 23.44°
Right Ascension of the Sun -94.53° -94.30° -94.07°
Sun Declination -23.37° -23.38° -23.38°
Moon 6:46 AM MST (12/17)   5:21 PM MST (12/17)
Length of Visible Light 10h 51m
Length of Day
9h 56m
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