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Astronomy

Dec. 16, 2017 Rise Solar Noon Set
Actual Time 7:30 AM MST 11:47 AM MST 4:03 PM MST
Civil Twilight 6:55 AM MST   4:38 PM MST
Nautical Twilight 6:16 AM MST   5:17 PM MST
Astronomical Twilight 5:39 AM MST   5:54 PM MST
Altitude -0.8° 19.8° -0.8°
Azimuth 124.3° 180.0° 235.6°
Hour Angle of the Sun 64.1° 64.0° -64.0°
Mean Anomaly of the Sun 342.18° 342.36° 342.54°
Obliquity 23.44° 23.44° 23.44°
Right Ascension of the Sun -95.64° -95.44° -95.24°
Sun Declination -23.33° -23.34° -23.35°
Moon 5:43 AM MST   3:28 PM MST
Length of Visible Light 9h 43m
Length of Day
8h 32m
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