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Astronomy

Oct. 20, 2017 Rise Solar Noon Set
Actual Time 7:17 AM MDT 12:51 PM MDT 6:25 PM MDT
Civil Twilight 6:52 AM MDT   6:51 PM MDT
Nautical Twilight 6:22 AM MDT   7:20 PM MDT
Astronomical Twilight 5:53 AM MDT   7:50 PM MDT
Altitude -0.8° 44.2° -0.8°
Azimuth 102.3° 180.0° 257.5°
Hour Angle of the Sun 83.5° 83.5° -83.4°
Mean Anomaly of the Sun 285.96° 286.18° 286.41°
Obliquity 23.43° 23.43° 23.43°
Right Ascension of the Sun -154.62° -154.40° -154.18°
Sun Declination -10.52° -10.61° -10.69°
Moon 7:59 AM MDT   7:23 PM MDT
Length of Visible Light 11h 59m
Length of Day
11h 07m
New Moon, 1% of the Moon is Illuminated
Oct 20
New Moon
Oct 27
First Quarter
Nov 4
Full
Nov 10
Last Quarter
Nov 18
New