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Astronomy

Jul. 21, 2017 Rise Solar Noon Set
Actual Time 5:45 AM MDT 1:20 PM MDT 8:55 PM MDT
Civil Twilight 5:09 AM MDT   9:31 PM MDT
Nautical Twilight 4:23 AM MDT   10:17 PM MDT
Astronomical Twilight 3:25 AM MDT   11:14 PM MDT
Altitude -0.8° 64.5° -0.8°
Azimuth 59.1° 180.0° 300.7°
Hour Angle of the Sun 113.8° 113.7° -113.7°
Mean Anomaly of the Sun 196.20° 196.51° 196.83°
Obliquity 23.43° 23.43° 23.43°
Right Ascension of the Sun 121.04° 121.36° 121.67°
Sun Declination 20.37° 20.31° 20.25°
Moon 3:58 AM MDT   7:23 PM MDT
Length of Visible Light 16h 21m
Length of Day
15h 09m
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