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Astronomy

Jul. 21, 2017 Rise Solar Noon Set
Actual Time 6:03 AM MDT 1:19 PM MDT 8:34 PM MDT
Civil Twilight 5:32 AM MDT   9:05 PM MDT
Nautical Twilight 4:54 AM MDT   9:43 PM MDT
Astronomical Twilight 4:11 AM MDT   10:26 PM MDT
Altitude -0.8° 71.0° -0.8°
Azimuth 62.5° 180.0° 297.4°
Hour Angle of the Sun 108.9° 108.9° -108.8°
Mean Anomaly of the Sun 196.21° 196.51° 196.81°
Obliquity 23.43° 23.43° 23.43°
Right Ascension of the Sun 121.06° 121.36° 121.66°
Sun Declination 20.37° 20.31° 20.25°
Moon 4:15 AM MDT   7:03 PM MDT
Length of Visible Light 15h 32m
Length of Day
14h 30m
Waning Crescent, 5% of the Moon is Illuminated
Jul 21
Waning Crescent
Jul 23
New
Jul 30
First Quarter
Aug 7
Full
Aug 14
Last Quarter