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Astronomy
May. 21, 2013 Rise Solar Noon Set
Actual Time 5:15 AM MDT 12:47 PM MDT 8:20 PM MDT
Civil Twilight 4:40 AM MDT   8:56 PM MDT
Nautical Twilight 3:55 AM MDT   9:41 PM MDT
Astronomical Twilight 3:01 AM MDT   10:36 PM MDT
Altitude -0.8° 65.3° -0.8°
Azimuth 59.7° 180.0° 300.5°
Hour Angle of the Sun 113.1° 113.2° -113.2°
Mean Anomaly of the Sun 136.10° 136.41° 136.72°
Obliquity 23.44° 23.44° 23.44°
Right Ascension of the Sun 58.41° 58.73° 59.05°
Sun Declination 20.27° 20.33° 20.39°
Moon 4:28 PM MDT   2:55 AM MDT
Length Of Visible Light 16h 15m
Length of Day
15h 05m
Waxing Gibbous, 83% of the Moon is Illuminated
May 21
Waxing Gibbous
May 25
Full
May 31
Last Quarter
Jun 8
New
Jun 16
First Quarter
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