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Astronomy

Sep. 19, 2017 Rise Solar Noon Set
Actual Time 6:47 AM MDT 12:55 PM MDT 7:03 PM MDT
Civil Twilight 6:19 AM MDT   7:30 PM MDT
Nautical Twilight 5:48 AM MDT   8:02 PM MDT
Astronomical Twilight 5:15 AM MDT   8:34 PM MDT
Altitude -0.8° 51.1° -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 255.38° 255.63° 255.88°
Obliquity 23.43° 23.43° 23.43°
Right Ascension of the Sun 177.04° 177.27° 177.50°
Sun Declination 1.28° 1.18° 1.08°
Moon 6:02 AM MDT (9/19)   7:05 PM MDT (9/19)
Length of Visible Light 13h 10m
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