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Astronomy

Dec. 11, 2017 Rise Solar Noon Set
Actual Time 7:08 AM MST 11:48 AM MST 4:29 PM MST
Civil Twilight 6:37 AM MST   4:59 PM MST
Nautical Twilight 6:03 AM MST   5:34 PM MST
Astronomical Twilight 5:30 AM MST   6:07 PM MST
Altitude -0.8° 26.7° -0.8°
Azimuth 120.0° 180.0° 239.9°
Hour Angle of the Sun 70.2° 70.1° -70.1°
Mean Anomaly of the Sun 337.24° 337.43° 337.63°
Obliquity 23.44° 23.44° 23.44°
Right Ascension of the Sun -101.18° -100.96° -100.75°
Sun Declination -23.04° -23.05° -23.07°
Moon 12:35 AM MST   1:09 PM MST
Length of Visible Light 10h 22m
Length of Day
9h 21m
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