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Astronomy

Dec. 10, 2017 Rise Solar Noon Set
Actual Time 6:57 AM MST 11:55 AM MST 4:53 PM MST
Civil Twilight 6:30 AM MST   5:21 PM MST
Nautical Twilight 5:58 AM MST   5:52 PM MST
Astronomical Twilight 5:28 AM MST   6:22 PM MST
Altitude -0.8° 32.9° -0.8°
Azimuth 117.5° 180.0° 242.5°
Hour Angle of the Sun 74.5° 74.5° -74.4°
Mean Anomaly of the Sun 336.25° 336.45° 336.66°
Obliquity 23.44° 23.44° 23.44°
Right Ascension of the Sun -102.29° -102.06° -101.83°
Sun Declination -22.95° -22.97° -22.99°
Moon No Moon Rise   12:42 PM MST (12/10)
Length of Visible Light 10h 51m
Length of Day
9h 55m
Last Quarter, 41% of the Moon is Illuminated
Dec 10
Last Quarter
Dec 18
New
Dec 26
First Quarter
Jan 1
Full
Jan 8
Last Quarter