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Astronomy

Dec. 18, 2017 Rise Solar Noon Set
Actual Time 7:45 AM MST 12:24 PM MST 5:04 PM MST
Civil Twilight 7:14 AM MST   5:35 PM MST
Nautical Twilight 6:40 AM MST   6:09 PM MST
Astronomical Twilight 6:07 AM MST   6:42 PM MST
Altitude -0.8° 26.4° -0.8°
Azimuth 120.5° 180.0° 239.5°
Hour Angle of the Sun 69.9° 69.8° -69.8°
Mean Anomaly of the Sun 344.17° 344.36° 344.55°
Obliquity 23.44° 23.44° 23.44°
Right Ascension of the Sun -93.41° -93.20° -92.98°
Sun Declination -23.40° -23.40° -23.41°
Moon 7:52 AM MST   5:48 PM MST
Length of Visible Light 10h 20m
Length of Day
9h 18m
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