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Astronomy

Sep. 23, 2017 Rise Solar Noon Set
Actual Time 6:42 AM MDT 12:46 PM MDT 6:48 PM MDT
Civil Twilight 6:14 AM MDT   7:17 PM MDT
Nautical Twilight 5:40 AM MDT   7:50 PM MDT
Astronomical Twilight 5:06 AM MDT   8:24 PM MDT
Altitude -0.8° 46.2° -0.8°
Azimuth 89.6° 180.0° 270.1°
Hour Angle of the Sun 90.9° 90.8° -90.7°
Mean Anomaly of the Sun 259.32° 259.57° 259.82°
Obliquity 23.43° 23.43° 23.43°
Right Ascension of the Sun -179.38° -179.15° -178.92°
Sun Declination -0.27° -0.37° -0.47°
Moon 10:08 AM MDT (9/23)   8:59 PM MDT (9/23)
Length of Visible Light 13h 03m
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