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Astronomy

Jul. 20, 2017 Rise Solar Noon Set
Actual Time 5:47 AM MDT 1:00 PM MDT 8:12 PM MDT
Civil Twilight 5:17 AM MDT   8:42 PM MDT
Nautical Twilight 4:40 AM MDT   9:20 PM MDT
Astronomical Twilight 3:59 AM MDT   10:01 PM MDT
Altitude -0.8° 72.6° -0.8°
Azimuth 62.8° 180.0° 297.0°
Hour Angle of the Sun 108.2° 108.1° -108.1°
Mean Anomaly of the Sun 195.22° 195.51° 195.81°
Obliquity 23.43° 23.43° 23.43°
Right Ascension of the Sun 120.05° 120.35° 120.65°
Sun Declination 20.57° 20.51° 20.45°
Moon 3:03 AM MDT   5:36 PM MDT
Length of Visible Light 15h 25m
Length of Day
14h 25m
Waning Crescent, 9% of the Moon is Illuminated
Jul 20
Waning Crescent
Jul 23
New
Jul 30
First Quarter
Aug 7
Full
Aug 14
Last Quarter