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Astronomy

Dec. 11, 2017 Rise Solar Noon Set
Actual Time 8:12 AM MST 12:23 PM MST 4:33 PM MST
Civil Twilight 7:35 AM MST   5:10 PM MST
Nautical Twilight 6:55 AM MST   5:50 PM MST
Astronomical Twilight 6:17 AM MST   6:28 PM MST
Altitude -0.8° 18.3° -0.8°
Azimuth 125.1° 180.0° 234.8°
Hour Angle of the Sun 62.7° 62.7° -62.7°
Mean Anomaly of the Sun 337.28° 337.46° 337.63°
Obliquity 23.44° 23.44° 23.44°
Right Ascension of the Sun -101.13° -100.94° -100.75°
Sun Declination -23.04° -23.05° -23.07°
Moon 1:08 AM MST   1:44 PM MST
Length of Visible Light 9h 35m
Length of Day
8h 21m
Last Quarter, 36% of the Moon is Illuminated
Dec 11
Last Quarter
Dec 18
New
Dec 26
First Quarter
Jan 1
Full
Jan 8
Last Quarter