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Astronomy

Apr. 23, 2017 Rise Solar Noon Set
Actual Time 6:00 AM MDT 12:51 PM MDT 7:43 PM MDT
Civil Twilight 5:30 AM MDT   8:12 PM MDT
Nautical Twilight 4:55 AM MDT   8:48 PM MDT
Astronomical Twilight 4:16 AM MDT   9:27 PM MDT
Altitude -0.8° 61.0° -0.8°
Azimuth 72.1° 180.0° 288.2°
Hour Angle of the Sun 102.8° 102.9° -103.0°
Mean Anomaly of the Sun 108.49° 108.78° 109.06°
Obliquity 23.43° 23.43° 23.43°
Right Ascension of the Sun 31.29° 31.56° 31.83°
Sun Declination 12.69° 12.78° 12.88°
Moon 4:38 AM MDT   4:35 PM MDT
Length of Visible Light 14h 41m
Length of Day
13h 42m
Waning Crescent, 10% of the Moon is Illuminated
Apr 23
Waning Crescent
Apr 26
New
May 2
First Quarter
May 10
Full
May 18
Last Quarter