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Astronomy

Oct. 21, 2017 Rise Solar Noon Set
Actual Time 7:32 AM MDT 12:52 PM MDT 6:12 PM MDT
Civil Twilight 7:02 AM MDT   6:42 PM MDT
Nautical Twilight 6:28 AM MDT   7:16 PM MDT
Astronomical Twilight 5:54 AM MDT   7:50 PM MDT
Altitude -0.8° 34.1° -0.8°
Azimuth 104.6° 180.0° 255.2°
Hour Angle of the Sun 80.2° 80.1° -80.0°
Mean Anomaly of the Sun 286.95° 287.17° 287.39°
Obliquity 23.43° 23.43° 23.43°
Right Ascension of the Sun -153.67° -153.46° -153.25°
Sun Declination -10.88° -10.96° -11.04°
Moon 9:14 AM MDT   7:42 PM MDT
Length of Visible Light 11h 40m
Length of Day
10h 40m
Waxing Crescent, 4% of the Moon is Illuminated
Oct 21
Waxing Crescent
Oct 27
First Quarter
Nov 4
Full
Nov 10
Last Quarter
Nov 18
New