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Astronomy

Jan. 20, 2017 Rise Solar Noon Set
Actual Time 6:55 AM MST 12:04 PM MST 5:13 PM MST
Civil Twilight 6:28 AM MST   5:40 PM MST
Nautical Twilight 5:58 AM MST   6:10 PM MST
Astronomical Twilight 5:28 AM MST   6:40 PM MST
Altitude -0.8° 36.8° -0.8°
Azimuth 113.5° 180.0° 246.6°
Hour Angle of the Sun 77.3° 77.3° -77.4°
Mean Anomaly of the Sun 16.91° 17.12° 17.34°
Obliquity 23.43° 23.43° 23.43°
Right Ascension of the Sun -57.09° -56.86° -56.63°
Sun Declination -20.00° -19.95° -19.90°
Moon 12:33 AM MST   12:01 PM MST
Length of Visible Light 11h 11m
Length of Day
10h 18m
Last Quarter, 44% of the Moon is Illuminated
Jan 20
Last Quarter
Jan 27
New
Feb 3
First Quarter
Feb 10
Full
Feb 18
Last Quarter