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Astronomy

Jan. 20, 2017 Rise Solar Noon Set
Actual Time 7:13 AM MST 12:10 PM MST 5:07 PM MST
Civil Twilight 6:44 AM MST   5:36 PM MST
Nautical Twilight 6:12 AM MST   6:08 PM MST
Astronomical Twilight 5:40 AM MST   6:40 PM MST
Altitude -0.8° 31.2° -0.8°
Azimuth 115.3° 180.0° 244.8°
Hour Angle of the Sun 74.2° 74.2° -74.2°
Mean Anomaly of the Sun 16.92° 17.13° 17.33°
Obliquity 23.43° 23.43° 23.43°
Right Ascension of the Sun -57.07° -56.86° -56.64°
Sun Declination -19.99° -19.95° -19.90°
Moon 12:44 AM MST (1/20)   12:01 PM MST (1/20)
Length of Visible Light 10h 51m
Length of Day
9h 53m
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