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Astronomy

Dec. 11, 2017 Rise Solar Noon Set
Actual Time 7:33 AM MST 12:22 PM MST 5:10 PM MST
Civil Twilight 7:04 AM MST   5:39 PM MST
Nautical Twilight 6:31 AM MST   6:12 PM MST
Astronomical Twilight 5:59 AM MST   6:44 PM MST
Altitude -0.8° 29.3° -0.8°
Azimuth 118.9° 180.0° 241.1°
Hour Angle of the Sun 72.0° 72.0° -72.0°
Mean Anomaly of the Sun 337.26° 337.46° 337.65°
Obliquity 23.44° 23.44° 23.44°
Right Ascension of the Sun -101.16° -100.94° -100.72°
Sun Declination -23.04° -23.05° -23.07°
Moon 1:11 AM MST   1:43 PM MST
Length of Visible Light 10h 34m
Length of Day
9h 36m
Waning Crescent, 33% of the Moon is Illuminated
Dec 11
Waning Crescent
Dec 18
New
Dec 26
First Quarter
Jan 1
Full
Jan 8
Last Quarter