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Astronomy

Sep. 23, 2017 Rise Solar Noon Set
Actual Time 7:01 AM MDT 1:04 PM MDT 7:07 PM MDT
Civil Twilight 6:34 AM MDT   7:33 PM MDT
Nautical Twilight 6:03 AM MDT   8:05 PM MDT
Astronomical Twilight 5:31 AM MDT   8:36 PM MDT
Altitude -0.8° 50.5° -0.8°
Azimuth 89.7° 180.0° 270.1°
Hour Angle of the Sun 90.8° 90.8° -90.7°
Mean Anomaly of the Sun 259.33° 259.58° 259.83°
Obliquity 23.43° 23.43° 23.43°
Right Ascension of the Sun -179.36° -179.14° -178.91°
Sun Declination -0.28° -0.37° -0.47°
Moon 10:21 AM MDT (9/23)   9:25 PM MDT (9/23)
Length of Visible Light 12h 59m
Length of Day
12h 05m
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