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Astronomy

Dec. 18, 2017 Rise Solar Noon Set
Actual Time 7:24 AM MST 11:50 AM MST 4:16 PM MST
Civil Twilight 6:51 AM MST   4:50 PM MST
Nautical Twilight 6:14 AM MST   5:26 PM MST
Astronomical Twilight 5:39 AM MST   6:02 PM MST
Altitude -0.8° 22.4° -0.8°
Azimuth 122.7° 180.0° 237.3°
Hour Angle of the Sun 66.5° 66.5° -66.5°
Mean Anomaly of the Sun 344.15° 344.33° 344.52°
Obliquity 23.44° 23.44° 23.44°
Right Ascension of the Sun -93.43° -93.22° -93.02°
Sun Declination -23.40° -23.40° -23.41°
Moon 7:28 AM MST   5:01 PM MST
Length of Visible Light 9h 58m
Length of Day
8h 52m
New Moon, 0% of the Moon is Illuminated
Dec 18
New Moon
Dec 26
First Quarter
Jan 1
Full
Jan 8
Last Quarter
Jan 16
New