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Astronomy

Jul. 21, 2017 Rise Solar Noon Set
Actual Time 5:25 AM MDT 12:54 PM MDT 8:22 PM MDT
Civil Twilight 4:51 AM MDT   8:56 PM MDT
Nautical Twilight 4:08 AM MDT   9:39 PM MDT
Astronomical Twilight 3:16 AM MDT   10:30 PM MDT
Altitude -0.8° 66.6° -0.8°
Azimuth 60.3° 180.0° 299.5°
Hour Angle of the Sun 112.1° 112.1° -112.0°
Mean Anomaly of the Sun 196.19° 196.50° 196.80°
Obliquity 23.43° 23.43° 23.43°
Right Ascension of the Sun 121.03° 121.34° 121.65°
Sun Declination 20.38° 20.32° 20.25°
Moon 3:37 AM MDT   6:49 PM MDT
Length of Visible Light 16h 04m
Length of Day
14h 56m
Waning Crescent, 6% of the Moon is Illuminated
Jul 21
Waning Crescent
Jul 23
New
Jul 30
First Quarter
Aug 7
Full
Aug 14
Last Quarter