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Astronomy

Jan. 20, 2017 Rise Solar Noon Set
Actual Time 7:43 AM MST 12:24 PM MST 5:07 PM MST
Civil Twilight 7:11 AM MST   5:38 PM MST
Nautical Twilight 6:35 AM MST   6:14 PM MST
Astronomical Twilight 6:01 AM MST   6:49 PM MST
Altitude -0.8° 25.6° -0.8°
Azimuth 117.7° 180.0° 242.4°
Hour Angle of the Sun 70.4° 70.5° -70.5°
Mean Anomaly of the Sun 16.94° 17.14° 17.33°
Obliquity 23.43° 23.43° 23.43°
Right Ascension of the Sun -57.05° -56.85° -56.64°
Sun Declination -19.99° -19.95° -19.90°
Moon 1:06 AM MST (1/20)   12:08 PM MST (1/20)
Length of Visible Light 10h 27m
Length of Day
9h 23m
Last Quarter, 38% of the Moon is Illuminated
Jan 21
Last Quarter
Jan 27
New
Feb 3
First Quarter
Feb 10
Full
Feb 18
Last Quarter