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Astronomy

Jul. 21, 2017 Rise Solar Noon Set
Actual Time 6:05 AM MDT 1:20 PM MDT 8:35 PM MDT
Civil Twilight 5:34 AM MDT   9:05 PM MDT
Nautical Twilight 4:56 AM MDT   9:43 PM MDT
Astronomical Twilight 4:14 AM MDT   10:26 PM MDT
Altitude -0.8° 71.2° -0.8°
Azimuth 62.6° 180.0° 297.2°
Hour Angle of the Sun 108.8° 108.7° -108.6°
Mean Anomaly of the Sun 196.22° 196.51° 196.81°
Obliquity 23.43° 23.43° 23.43°
Right Ascension of the Sun 121.06° 121.36° 121.66°
Sun Declination 20.37° 20.31° 20.25°
Moon 4:17 AM MDT (7/21)   7:04 PM MDT (7/21)
Length of Visible Light 15h 31m
Length of Day
14h 29m
Waning Crescent, 3% of the Moon is Illuminated
Jul 21
Waning Crescent
Jul 23
New
Jul 30
First Quarter
Aug 7
Full
Aug 14
Last Quarter