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Astronomy

Dec. 11, 2017 Rise Solar Noon Set
Actual Time 7:33 AM MST 12:17 PM MST 5:00 PM MST
Civil Twilight 7:03 AM MST   5:30 PM MST
Nautical Twilight 6:30 AM MST   6:04 PM MST
Astronomical Twilight 5:57 AM MST   6:36 PM MST
Altitude -0.8° 27.6° -0.8°
Azimuth 119.6° 180.0° 240.3°
Hour Angle of the Sun 70.8° 70.8° -70.8°
Mean Anomaly of the Sun 337.26° 337.45° 337.65°
Obliquity 23.44° 23.44° 23.44°
Right Ascension of the Sun -101.16° -100.94° -100.73°
Sun Declination -23.04° -23.05° -23.07°
Moon 1:05 AM MST (12/11)   1:38 PM MST (12/11)
Length of Visible Light 10h 26m
Length of Day
9h 26m
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