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Astronomy

Dec. 18, 2017 Rise Solar Noon Set
Actual Time 7:43 AM MST 12:31 PM MST 5:19 PM MST
Civil Twilight 7:13 AM MST   5:48 PM MST
Nautical Twilight 6:41 AM MST   6:21 PM MST
Astronomical Twilight 6:09 AM MST   6:53 PM MST
Altitude -0.8° 29.5° -0.8°
Azimuth 119.2° 180.0° 240.8°
Hour Angle of the Sun 72.1° 72.1° -72.1°
Mean Anomaly of the Sun 344.16° 344.36° 344.56°
Obliquity 23.44° 23.44° 23.44°
Right Ascension of the Sun -93.41° -93.19° -92.97°
Sun Declination -23.40° -23.40° -23.41°
Moon 7:51 AM MST   6:02 PM MST
Length of Visible Light 10h 35m
Length of Day
9h 36m
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