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Astronomy

Oct. 17, 2017 Rise Solar Noon Set
Actual Time 7:33 AM MDT 12:59 PM MDT 6:24 PM MDT
Civil Twilight 7:03 AM MDT   6:54 PM MDT
Nautical Twilight 6:29 AM MDT   7:28 PM MDT
Astronomical Twilight 5:54 AM MDT   8:02 PM MDT
Altitude -0.8° 34.7° -0.8°
Azimuth 102.7° 180.0° 257.0°
Hour Angle of the Sun 81.4° 81.3° -81.2°
Mean Anomaly of the Sun 283.01° 283.23° 283.45°
Obliquity 23.43° 23.43° 23.43°
Right Ascension of the Sun -157.43° -157.22° -157.01°
Sun Declination -9.45° -9.53° -9.61°
Moon 5:04 AM MDT (10/17)   5:51 PM MDT (10/17)
Length of Visible Light 11h 50m
Length of Day
10h 50m
Waning Crescent, 3% of the Moon is Illuminated
Oct 17
Waning Crescent
Oct 19
New
Oct 27
First Quarter
Nov 4
Full
Nov 10
Last Quarter