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Astronomy

Dec. 17, 2017 Rise Solar Noon Set
Actual Time 8:12 AM MST 12:28 PM MST 4:45 PM MST
Civil Twilight 7:36 AM MST   5:21 PM MST
Nautical Twilight 6:58 AM MST   5:59 PM MST
Astronomical Twilight 6:21 AM MST   6:36 PM MST
Altitude -0.8° 20.0° -0.8°
Azimuth 124.2° 180.0° 235.7°
Hour Angle of the Sun 64.2° 64.2° -64.2°
Mean Anomaly of the Sun 343.20° 343.37° 343.55°
Obliquity 23.44° 23.44° 23.44°
Right Ascension of the Sun -94.50° -94.30° -94.10°
Sun Declination -23.37° -23.38° -23.38°
Moon 7:23 AM MST (12/17)   4:49 PM MST (12/17)
Length of Visible Light 9h 44m
Length of Day
8h 33m
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