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Astronomy

Aug. 21, 2017 Rise Solar Noon Set
Actual Time 6:21 AM MDT 1:16 PM MDT 8:11 PM MDT
Civil Twilight 5:50 AM MDT   8:42 PM MDT
Nautical Twilight 5:11 AM MDT   9:21 PM MDT
Astronomical Twilight 4:28 AM MDT   10:03 PM MDT
Altitude -0.8° 56.1° -0.8°
Azimuth 71.8° 180.0° 287.9°
Hour Angle of the Sun 103.8° 103.7° -103.6°
Mean Anomaly of the Sun 226.78° 227.07° 227.35°
Obliquity 23.43° 23.43° 23.43°
Right Ascension of the Sun 150.79° 151.05° 151.32°
Sun Declination 11.95° 11.85° 11.75°
Moon 6:07 AM MDT   8:19 PM MDT
Length of Visible Light 14h 52m
Length of Day
13h 49m
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