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Astronomy

Apr. 23, 2017 Rise Solar Noon Set
Actual Time 6:09 AM MDT 12:57 PM MDT 7:45 PM MDT
Civil Twilight 5:40 AM MDT   8:13 PM MDT
Nautical Twilight 5:06 AM MDT   8:48 PM MDT
Astronomical Twilight 4:30 AM MDT   9:25 PM MDT
Altitude -0.8° 63.1° -0.8°
Azimuth 72.7° 180.0° 287.6°
Hour Angle of the Sun 101.9° 102.0° -102.1°
Mean Anomaly of the Sun 108.50° 108.78° 109.06°
Obliquity 23.43° 23.43° 23.43°
Right Ascension of the Sun 31.30° 31.56° 31.83°
Sun Declination 12.69° 12.78° 12.88°
Moon 4:42 AM MDT   4:41 PM MDT
Length of Visible Light 14h 32m
Length of Day
13h 35m
Waning Crescent, 9% of the Moon is Illuminated
Apr 23
Waning Crescent
Apr 26
New
May 2
First Quarter
May 10
Full
May 18
Last Quarter