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Astronomy

Oct. 20, 2017 Rise Solar Noon Set
Actual Time 7:20 AM MDT 12:47 PM MDT 6:13 PM MDT
Civil Twilight 6:52 AM MDT   6:41 PM MDT
Nautical Twilight 6:19 AM MDT   7:13 PM MDT
Astronomical Twilight 5:47 AM MDT   7:45 PM MDT
Altitude -0.8° 38.1° -0.8°
Azimuth 103.3° 180.0° 256.5°
Hour Angle of the Sun 81.7° 81.7° -81.6°
Mean Anomaly of the Sun 285.96° 286.18° 286.40°
Obliquity 23.43° 23.43° 23.43°
Right Ascension of the Sun -154.62° -154.41° -154.19°
Sun Declination -10.52° -10.61° -10.69°
Moon 8:01 AM MDT   7:10 PM MDT
Length of Visible Light 11h 49m
Length of Day
10h 53m
New Moon, 0% of the Moon is Illuminated
Oct 20
New Moon
Oct 27
First Quarter
Nov 4
Full
Nov 10
Last Quarter
Nov 18
New