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Astronomy

Oct. 21, 2017 Rise Solar Noon Set
Actual Time 7:48 AM MDT 1:08 PM MDT 6:29 PM MDT
Civil Twilight 7:18 AM MDT   6:58 PM MDT
Nautical Twilight 6:44 AM MDT   7:32 PM MDT
Astronomical Twilight 6:10 AM MDT   8:06 PM MDT
Altitude -0.8° 34.3° -0.8°
Azimuth 104.6° 180.0° 255.2°
Hour Angle of the Sun 80.2° 80.2° -80.1°
Mean Anomaly of the Sun 286.96° 287.18° 287.40°
Obliquity 23.43° 23.43° 23.43°
Right Ascension of the Sun -153.66° -153.45° -153.24°
Sun Declination -10.89° -10.97° -11.05°
Moon 9:30 AM MDT   7:59 PM MDT
Length of Visible Light 11h 40m
Length of Day
10h 41m
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