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Astronomy

Jul. 21, 2017 Rise Solar Noon Set
Actual Time 5:49 AM MDT 1:06 PM MDT 8:23 PM MDT
Civil Twilight 5:18 AM MDT   8:54 PM MDT
Nautical Twilight 4:39 AM MDT   9:33 PM MDT
Astronomical Twilight 3:55 AM MDT   10:17 PM MDT
Altitude -0.8° 70.4° -0.8°
Azimuth 62.2° 180.0° 297.6°
Hour Angle of the Sun 109.3° 109.3° -109.2°
Mean Anomaly of the Sun 196.21° 196.50° 196.80°
Obliquity 23.43° 23.43° 23.43°
Right Ascension of the Sun 121.05° 121.35° 121.65°
Sun Declination 20.37° 20.31° 20.25°
Moon 4:00 AM MDT   6:51 PM MDT
Length of Visible Light 15h 36m
Length of Day
14h 34m
Waning Crescent, 7% of the Moon is Illuminated
Jul 21
Waning Crescent
Jul 23
New
Jul 30
First Quarter
Aug 7
Full
Aug 14
Last Quarter