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Astronomy

Oct. 20, 2017 Rise Solar Noon Set
Actual Time 7:51 AM MDT 1:16 PM MDT 6:40 PM MDT
Civil Twilight 7:22 AM MDT   7:09 PM MDT
Nautical Twilight 6:49 AM MDT   7:42 PM MDT
Astronomical Twilight 6:17 AM MDT   8:15 PM MDT
Altitude -0.8° 36.6° -0.8°
Azimuth 103.6° 180.0° 256.2°
Hour Angle of the Sun 81.3° 81.2° -81.1°
Mean Anomaly of the Sun 285.98° 286.20° 286.42°
Obliquity 23.43° 23.43° 23.43°
Right Ascension of the Sun -154.60° -154.39° -154.17°
Sun Declination -10.53° -10.61° -10.69°
Moon 8:33 AM MDT (10/20)   7:38 PM MDT (10/20)
Length of Visible Light 11h 46m
Length of Day
10h 49m
New Moon, 2% of the Moon is Illuminated
Oct 20
New Moon
Oct 27
First Quarter
Nov 4
Full
Nov 10
Last Quarter
Nov 18
New