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Astronomy

Sep. 23, 2017 Rise Solar Noon Set
Actual Time 7:25 AM MDT 1:28 PM MDT 7:31 PM MDT
Civil Twilight 6:54 AM MDT   8:01 PM MDT
Nautical Twilight 6:19 AM MDT   8:36 PM MDT
Astronomical Twilight 5:42 AM MDT   9:13 PM MDT
Altitude -0.8° 42.9° -0.8°
Azimuth 89.5° 180.0° 270.2°
Hour Angle of the Sun 90.9° 90.8° -90.7°
Mean Anomaly of the Sun 259.35° 259.60° 259.85°
Obliquity 23.43° 23.43° 23.43°
Right Ascension of the Sun -179.35° -179.12° -178.90°
Sun Declination -0.28° -0.38° -0.48°
Moon 10:57 AM MDT (9/23)   9:37 PM MDT (9/23)
Length of Visible Light 13h 06m
Length of Day
12h 06m
Waxing Crescent, 15% of the Moon is Illuminated
Sep 23
Waxing Crescent
Sep 27
First Quarter
Oct 5
Full
Oct 12
Last Quarter
Oct 19
New