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Astronomy

Sep. 21, 2017 Rise Solar Noon Set
Actual Time 6:18 AM MST 12:23 PM MST 6:28 PM MST
Civil Twilight 5:53 AM MST   6:53 PM MST
Nautical Twilight 5:25 AM MST   7:21 PM MST
Astronomical Twilight 4:56 AM MST   7:50 PM MST
Altitude -0.8° 57.5° -0.8°
Azimuth 88.9° 180.0° 270.9°
Hour Angle of the Sun 91.3° 91.3° -91.2°
Mean Anomaly of the Sun 257.37° 257.62° 257.87°
Obliquity 23.43° 23.43° 23.43°
Right Ascension of the Sun 178.85° 179.08° 179.31°
Sun Declination 0.50° 0.40° 0.30°
Moon 7:38 AM MST   7:42 PM MST
Length of Visible Light 12h 59m
Length of Day
12h 09m
New Moon, 1% of the Moon is Illuminated
Sep 21
New Moon
Sep 27
First Quarter
Oct 5
Full
Oct 12
Last Quarter
Oct 19
New