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Astronomy
May. 21, 2013 Rise Solar Noon Set
Actual Time 5:31 AM MDT 1:05 PM MDT 8:40 PM MDT
Civil Twilight 4:56 AM MDT   9:15 PM MDT
Nautical Twilight 4:10 AM MDT   10:01 PM MDT
Astronomical Twilight 3:15 AM MDT   10:57 PM MDT
Altitude -0.8° 64.9° -0.8°
Azimuth 59.4° 180.0° 300.8°
Hour Angle of the Sun 113.4° 113.5° -113.6°
Mean Anomaly of the Sun 136.11° 136.42° 136.73°
Obliquity 23.44° 23.44° 23.44°
Right Ascension of the Sun 58.43° 58.74° 59.06°
Sun Declination 20.27° 20.33° 20.39°
Moon 4:47 PM MDT (5/21)   3:13 AM MDT (5/21)
Length Of Visible Light 16h 19m
Length of Day
15h 08m
Waxing Gibbous, 87% 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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