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Astronomy

Sep. 17, 2019 Rise Solar Noon Set
Actual Time 6:31 AM MDT 12:44 PM MDT 6:57 PM MDT
Civil Twilight 6:02 AM MDT   7:26 PM MDT
Nautical Twilight 5:27 AM MDT   8:00 PM MDT
Astronomical Twilight 4:51 AM MDT   8:36 PM MDT
Altitude -0.8° 47.6° -0.8°
Azimuth 86.0° 180.0° 273.7°
Hour Angle of the Sun 93.4° 93.3° -93.2°
Mean Anomaly of the Sun 252.89° 253.14° 253.40°
Obliquity 23.44° 23.44° 23.44°
Right Ascension of the Sun 174.80° 175.03° 175.26°
Sun Declination 2.25° 2.15° 2.05°
Moon 8:54 PM MDT   9:44 AM MDT
Length of Visible Light 13h 24m
Length of Day
12h 26m
Waning Gibbous, 91% of the Moon is Illuminated
Sep 17
Waning Gibbous
Sep 21
Last Quarter
Sep 28
New
Oct 5
First Quarter
Oct 13
Full