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Astronomy

Oct. 18, 2017 Rise Solar Noon Set
Actual Time 7:16 AM MDT 12:54 PM MDT 6:32 PM MDT
Civil Twilight 6:51 AM MDT   6:57 PM MDT
Nautical Twilight 6:22 AM MDT   7:26 PM MDT
Astronomical Twilight 5:54 AM MDT   7:54 PM MDT
Altitude -0.8° 47.4° -0.8°
Azimuth 101.1° 180.0° 258.7°
Hour Angle of the Sun 84.6° 84.6° -84.5°
Mean Anomaly of the Sun 283.98° 284.21° 284.45°
Obliquity 23.43° 23.43° 23.43°
Right Ascension of the Sun -156.50° -156.28° -156.06°
Sun Declination -9.80° -9.89° -9.97°
Moon 6:05 AM MDT (10/18)   6:18 PM MDT (10/18)
Length of Visible Light 12h 06m
Length of Day
11h 16m
Waning Crescent, 1% of the Moon is Illuminated
Oct 18
Waning Crescent
Oct 19
New
Oct 27
First Quarter
Nov 4
Full
Nov 10
Last Quarter