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Astronomy

Oct. 21, 2017 Rise Solar Noon Set
Actual Time 7:05 AM MDT 12:41 PM MDT 6:17 PM MDT
Civil Twilight 6:40 AM MDT   6:42 PM MDT
Nautical Twilight 6:11 AM MDT   7:10 PM MDT
Astronomical Twilight 5:43 AM MDT   7:39 PM MDT
Altitude -0.8° 46.7° -0.8°
Azimuth 102.4° 180.0° 257.4°
Hour Angle of the Sun 84.0° 84.0° -83.9°
Mean Anomaly of the Sun 286.93° 287.16° 287.39°
Obliquity 23.43° 23.43° 23.43°
Right Ascension of the Sun -153.68° -153.46° -153.24°
Sun Declination -10.88° -10.96° -11.04°
Moon 8:42 AM MDT   7:52 PM MDT
Length of Visible Light 12h 01m
Length of Day
11h 11m
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