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Astronomy

Sep. 19, 2017 Rise Solar Noon Set
Actual Time 6:49 AM MDT 12:57 PM MDT 7:04 PM MDT
Civil Twilight 6:22 AM MDT   7:31 PM MDT
Nautical Twilight 5:51 AM MDT   8:01 PM MDT
Astronomical Twilight 5:20 AM MDT   8:33 PM MDT
Altitude -0.8° 53.1° -0.8°
Azimuth 87.7° 180.0° 272.0°
Hour Angle of the Sun 92.1° 92.0° -91.9°
Mean Anomaly of the Sun 255.38° 255.63° 255.89°
Obliquity 23.43° 23.43° 23.43°
Right Ascension of the Sun 177.04° 177.27° 177.50°
Sun Declination 1.28° 1.18° 1.08°
Moon 6:05 AM MDT   7:06 PM MDT
Length of Visible Light 13h 08m
Length of Day
12h 15m
Waning Crescent, 0% of the Moon is Illuminated
Sep 19
Waning Crescent
Sep 20
New
Sep 27
First Quarter
Oct 5
Full
Oct 12
Last Quarter