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Astronomy

Dec. 11, 2017 Rise Solar Noon Set
Actual Time 7:55 AM MST 12:17 PM MST 4:40 PM MST
Civil Twilight 7:21 AM MST   5:14 PM MST
Nautical Twilight 6:43 AM MST   5:51 PM MST
Astronomical Twilight 6:07 AM MST   6:28 PM MST
Altitude -0.8° 21.3° -0.8°
Azimuth 123.0° 180.0° 236.9°
Hour Angle of the Sun 65.6° 65.6° -65.6°
Mean Anomaly of the Sun 337.27° 337.45° 337.63°
Obliquity 23.44° 23.44° 23.44°
Right Ascension of the Sun -101.14° -100.94° -100.74°
Sun Declination -23.04° -23.05° -23.07°
Moon 1:04 AM MST   1:39 PM MST
Length of Visible Light 9h 53m
Length of Day
8h 44m
Last Quarter, 40% of the Moon is Illuminated
Dec 11
Last Quarter
Dec 18
New
Dec 26
First Quarter
Jan 1
Full
Jan 8
Last Quarter