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Astronomy

Jul. 20, 2017 Rise Solar Noon Set
Actual Time 5:43 AM MDT 1:24 PM MDT 9:04 PM MDT
Civil Twilight 5:06 AM MDT   9:41 PM MDT
Nautical Twilight 4:16 AM MDT   10:30 PM MDT
Astronomical Twilight 3:13 AM MDT   11:32 PM MDT
Altitude -0.8° 63.5° -0.8°
Azimuth 57.9° 180.0° 301.9°
Hour Angle of the Sun 115.2° 115.1° -115.0°
Mean Anomaly of the Sun 195.22° 195.53° 195.85°
Obliquity 23.43° 23.43° 23.43°
Right Ascension of the Sun 120.04° 120.36° 120.68°
Sun Declination 20.57° 20.51° 20.44°
Moon 3:04 AM MDT   6:26 PM MDT
Length of Visible Light 16h 35m
Length of Day
15h 21m
Waning Crescent, 10% of the Moon is Illuminated
Jul 20
Waning Crescent
Jul 23
New
Jul 30
First Quarter
Aug 7
Full
Aug 14
Last Quarter