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Astronomy

Dec. 18, 2017 Rise Solar Noon Set
Actual Time 7:41 AM MST 12:05 PM MST 4:29 PM MST
Civil Twilight 7:08 AM MST   5:03 PM MST
Nautical Twilight 6:30 AM MST   5:40 PM MST
Astronomical Twilight 5:55 AM MST   6:16 PM MST
Altitude -0.8° 21.8° -0.8°
Azimuth 123.1° 180.0° 236.9°
Hour Angle of the Sun 65.9° 65.9° -65.9°
Mean Anomaly of the Sun 344.16° 344.34° 344.52°
Obliquity 23.44° 23.44° 23.44°
Right Ascension of the Sun -93.41° -93.21° -93.01°
Sun Declination -23.40° -23.40° -23.41°
Moon 7:46 AM MST   5:14 PM MST
Length of Visible Light 9h 55m
Length of Day
8h 47m
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