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Astronomy

Dec. 18, 2017 Rise Solar Noon Set
Actual Time 7:10 AM MST 12:01 PM MST 4:52 PM MST
Civil Twilight 6:42 AM MST   5:21 PM MST
Nautical Twilight 6:09 AM MST   5:53 PM MST
Astronomical Twilight 5:38 AM MST   6:25 PM MST
Altitude -0.8° 30.4° -0.8°
Azimuth 118.8° 180.0° 241.2°
Hour Angle of the Sun 72.8° 72.7° -72.7°
Mean Anomaly of the Sun 344.14° 344.34° 344.54°
Obliquity 23.44° 23.44° 23.44°
Right Ascension of the Sun -93.44° -93.21° -92.99°
Sun Declination -23.40° -23.40° -23.41°
Moon 7:18 AM MST   5:34 PM MST
Length of Visible Light 10h 39m
Length of Day
9h 42m
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