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Astronomy

Sep. 17, 2019 Rise Solar Noon Set
Actual Time 6:41 AM MDT 12:53 PM MDT 7:04 PM MDT
Civil Twilight 6:14 AM MDT   7:32 PM MDT
Nautical Twilight 5:41 AM MDT   8:04 PM MDT
Astronomical Twilight 5:08 AM MDT   8:37 PM MDT
Altitude -0.8° 51.6° -0.8°
Azimuth 86.3° 180.0° 273.4°
Hour Angle of the Sun 93.0° 92.9° -92.9°
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 9:08 PM MDT   9:49 AM MDT
Length of Visible Light 13h 18m
Length of Day
12h 23m
Waning Gibbous, 90% of the Moon is Illuminated
Sep 17
Waning Gibbous
Sep 21
Last Quarter
Sep 28
New
Oct 5
First Quarter
Oct 13
Full