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Astronomy

Aug. 21, 2017 Rise Solar Noon Set
Actual Time 6:43 AM MDT 1:29 PM MDT 8:15 PM MDT
Civil Twilight 6:14 AM MDT   8:43 PM MDT
Nautical Twilight 5:39 AM MDT   9:18 PM MDT
Astronomical Twilight 5:02 AM MDT   9:55 PM MDT
Altitude -0.8° 61.2° -0.8°
Azimuth 73.4° 180.0° 286.3°
Hour Angle of the Sun 101.6° 101.5° -101.4°
Mean Anomaly of the Sun 226.80° 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 6:30 AM MDT   8:24 PM MDT
Length of Visible Light 14h 29m
Length of Day
13h 31m
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