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Astronomy

Sep. 17, 2019 Rise Solar Noon Set
Actual Time 6:39 AM MDT 12:51 PM MDT 7:02 PM MDT
Civil Twilight 6:12 AM MDT   7:28 PM MDT
Nautical Twilight 5:41 AM MDT   8:00 PM MDT
Astronomical Twilight 5:09 AM MDT   8:32 PM MDT
Altitude -0.8° 53.0° -0.8°
Azimuth 86.4° 180.0° 273.3°
Hour Angle of the Sun 92.9° 92.8° -92.7°
Mean Anomaly of the Sun 252.89° 253.15° 253.40°
Obliquity 23.44° 23.44° 23.44°
Right Ascension of the Sun 174.81° 175.04° 175.27°
Sun Declination 2.25° 2.15° 2.05°
Moon 9:07 PM MDT   9:45 AM MDT
Length of Visible Light 13h 15m
Length of Day
12h 22m
Waning Gibbous, 88% of the Moon is Illuminated
Sep 17
Waning Gibbous
Sep 21
Last Quarter
Sep 28
New
Oct 5
First Quarter
Oct 13
Full