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Astronomy

Sep. 17, 2016 Rise Solar Noon Set
Actual Time 6:45 AM MDT 12:56 PM MDT 7:07 PM MDT
Civil Twilight 6:17 AM MDT   7:34 PM MDT
Nautical Twilight 5:45 AM MDT   8:07 PM MDT
Astronomical Twilight 5:11 AM MDT   8:40 PM MDT
Altitude -0.8° 50.4° -0.8°
Azimuth 86.6° 180.0° 273.1°
Hour Angle of the Sun 92.8° 92.8° -92.7°
Mean Anomaly of the Sun 253.66° 253.92° 254.17°
Obliquity 23.43° 23.43° 23.43°
Right Ascension of the Sun 175.46° 175.69° 175.92°
Sun Declination 1.96° 1.86° 1.76°
Moon 7:56 PM MDT (9/17)   7:38 AM MDT (9/17)
Length of Visible Light 13h 17m
Length of Day
12h 21m
Full, 98% of the Moon is Illuminated
Sep 17
Full
Sep 23
Last Quarter
Sep 30
New
Oct 9
First Quarter
Oct 16
Full