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Astronomy

Dec. 16, 2017 Rise Solar Noon Set
Actual Time 7:47 AM MST 12:23 PM MST 5:00 PM MST
Civil Twilight 7:16 AM MST   5:31 PM MST
Nautical Twilight 6:41 AM MST   6:06 PM MST
Astronomical Twilight 6:07 AM MST   6:39 PM MST
Altitude -0.8° 25.4° -0.8°
Azimuth 120.9° 180.0° 239.1°
Hour Angle of the Sun 69.1° 69.1° -69.1°
Mean Anomaly of the Sun 342.20° 342.39° 342.57°
Obliquity 23.44° 23.44° 23.44°
Right Ascension of the Sun -95.63° -95.41° -95.20°
Sun Declination -23.33° -23.34° -23.35°
Moon 6:07 AM MST   4:21 PM MST
Length of Visible Light 10h 15m
Length of Day
9h 12m
Waning Crescent, 3% of the Moon is Illuminated
Dec 16
Waning Crescent
Dec 18
New
Dec 26
First Quarter
Jan 1
Full
Jan 8
Last Quarter