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Astronomy

Apr. 21, 2018 Rise Solar Noon Set
Actual Time 6:33 AM MDT 1:28 PM MDT 8:25 PM MDT
Civil Twilight 6:01 AM MDT   8:57 PM MDT
Nautical Twilight 5:22 AM MDT   9:36 PM MDT
Astronomical Twilight 4:39 AM MDT   10:19 PM MDT
Altitude -0.8° 56.1° -0.8°
Azimuth 71.8° 180.0° 288.5°
Hour Angle of the Sun 103.9° 104.0° -104.1°
Mean Anomaly of the Sun 106.29° 106.57° 106.86°
Obliquity 23.44° 23.44° 23.44°
Right Ascension of the Sun 29.21° 29.48° 29.75°
Sun Declination 11.94° 12.04° 12.14°
Moon 11:10 AM MDT   1:45 AM MDT
Length of Visible Light 14h 55m
Length of Day
13h 51m
Waxing Crescent, 35% of the Moon is Illuminated
Apr 21
Waxing Crescent
Apr 22
First Quarter
Apr 29
Full
May 7
Last Quarter
May 15
New