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Astronomy

Oct. 21, 2017 Rise Solar Noon Set
Actual Time 7:15 AM MDT 12:43 PM MDT 6:10 PM MDT
Civil Twilight 6:48 AM MDT   6:37 PM MDT
Nautical Twilight 6:16 AM MDT   7:09 PM MDT
Astronomical Twilight 5:45 AM MDT   7:40 PM MDT
Altitude -0.8° 39.2° -0.8°
Azimuth 103.5° 180.0° 256.3°
Hour Angle of the Sun 81.9° 81.8° -81.7°
Mean Anomaly of the Sun 286.94° 287.16° 287.39°
Obliquity 23.43° 23.43° 23.43°
Right Ascension of the Sun -153.68° -153.46° -153.25°
Sun Declination -10.88° -10.96° -11.04°
Moon 8:55 AM MDT   7:42 PM MDT
Length of Visible Light 11h 49m
Length of Day
10h 54m
Waxing Crescent, 3% of the Moon is Illuminated
Oct 21
Waxing Crescent
Oct 27
First Quarter
Nov 4
Full
Nov 10
Last Quarter
Nov 18
New