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Astronomy

Sep. 20, 2017 Rise Solar Noon Set
Actual Time 7:22 AM MDT 1:30 PM MDT 7:37 PM MDT
Civil Twilight 6:53 AM MDT   8:06 PM MDT
Nautical Twilight 6:20 AM MDT   8:39 PM MDT
Astronomical Twilight 5:45 AM MDT   9:14 PM MDT
Altitude -0.8° 47.2° -0.8°
Azimuth 88.0° 180.0° 271.7°
Hour Angle of the Sun 92.0° 91.9° -91.8°
Mean Anomaly of the Sun 256.39° 256.64° 256.89°
Obliquity 23.43° 23.43° 23.43°
Right Ascension of the Sun 177.96° 178.19° 178.41°
Sun Declination 0.89° 0.79° 0.69°
Moon 7:43 AM MDT   8:13 PM MDT
Length of Visible Light 13h 12m
Length of Day
12h 15m
New Moon, 1% of the Moon is Illuminated
Sep 20
New Moon
Sep 27
First Quarter
Oct 5
Full
Oct 12
Last Quarter
Oct 19
New