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Astronomy

Aug. 21, 2017 Rise Solar Noon Set
Actual Time 6:36 AM MDT 1:27 PM MDT 8:16 PM MDT
Civil Twilight 6:06 AM MDT   8:46 PM MDT
Nautical Twilight 5:29 AM MDT   9:23 PM MDT
Astronomical Twilight 4:50 AM MDT   10:02 PM MDT
Altitude -0.8° 58.7° -0.8°
Azimuth 72.7° 180.0° 287.0°
Hour Angle of the Sun 102.6° 102.5° -102.4°
Mean Anomaly of the Sun 226.79° 227.07° 227.35°
Obliquity 23.43° 23.43° 23.43°
Right Ascension of the Sun 150.80° 151.06° 151.32°
Sun Declination 11.94° 11.85° 11.75°
Moon 6:23 AM MDT   8:25 PM MDT
Length of Visible Light 14h 40m
Length of Day
13h 40m
Waning Crescent, 0% of the Moon is Illuminated
Aug 21
Waning Crescent
Aug 21
New
Aug 29
First Quarter
Sep 6
Full
Sep 13
Last Quarter