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Astronomy

Oct. 20, 2017 Rise Solar Noon Set
Actual Time 7:44 AM MDT 1:08 PM MDT 6:31 PM MDT
Civil Twilight 7:15 AM MDT   7:00 PM MDT
Nautical Twilight 6:42 AM MDT   7:34 PM MDT
Astronomical Twilight 6:08 AM MDT   8:07 PM MDT
Altitude -0.8° 35.6° -0.8°
Azimuth 103.8° 180.0° 255.9°
Hour Angle of the Sun 80.9° 80.8° -80.8°
Mean Anomaly of the Sun 285.97° 286.20° 286.42°
Obliquity 23.43° 23.43° 23.43°
Right Ascension of the Sun -154.60° -154.39° -154.18°
Sun Declination -10.53° -10.61° -10.69°
Moon 8:26 AM MDT   7:28 PM MDT
Length of Visible Light 11h 45m
Length of Day
10h 46m
New Moon, 1% of the Moon is Illuminated
Oct 20
New Moon
Oct 27
First Quarter
Nov 4
Full
Nov 10
Last Quarter
Nov 18
New