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Astronomy

Sep. 19, 2017 Rise Solar Noon Set
Actual Time 6:31 AM MDT 12:40 PM MDT 6:48 PM MDT
Civil Twilight 6:04 AM MDT   7:15 PM MDT
Nautical Twilight 5:32 AM MDT   7:47 PM MDT
Astronomical Twilight 4:59 AM MDT   8:20 PM MDT
Altitude -0.8° 50.7° -0.8°
Azimuth 87.6° 180.0° 272.1°
Hour Angle of the Sun 92.2° 92.1° -92.0°
Mean Anomaly of the Sun 255.37° 255.62° 255.87°
Obliquity 23.43° 23.43° 23.43°
Right Ascension of the Sun 177.03° 177.26° 177.49°
Sun Declination 1.29° 1.19° 1.09°
Moon 5:46 AM MDT   6:50 PM MDT
Length of Visible Light 13h 11m
Length of Day
12h 16m
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