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Astronomy

Dec. 18, 2017 Rise Solar Noon Set
Actual Time 8:10 AM MST 12:23 PM MST 4:37 PM MST
Civil Twilight 7:34 AM MST   5:13 PM MST
Nautical Twilight 6:55 AM MST   5:52 PM MST
Astronomical Twilight 6:17 AM MST   6:29 PM MST
Altitude -0.8° 19.1° -0.8°
Azimuth 124.9° 180.0° 235.1°
Hour Angle of the Sun 63.3° 63.3° -63.3°
Mean Anomaly of the Sun 344.18° 344.36° 344.53°
Obliquity 23.44° 23.44° 23.44°
Right Ascension of the Sun -93.39° -93.20° -93.00°
Sun Declination -23.40° -23.40° -23.41°
Moon 8:13 AM MST   5:24 PM MST
Length of Visible Light 9h 38m
Length of Day
8h 26m
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