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Astronomy

Jan. 20, 2017 Rise Solar Noon Set
Actual Time 7:09 AM MST 12:09 PM MST 5:10 PM MST
Civil Twilight 6:41 AM MST   5:38 PM MST
Nautical Twilight 6:09 AM MST   6:10 PM MST
Astronomical Twilight 5:38 AM MST   6:41 PM MST
Altitude -0.8° 32.7° -0.8°
Azimuth 114.8° 180.0° 245.3°
Hour Angle of the Sun 75.0° 75.0° -75.1°
Mean Anomaly of the Sun 16.92° 17.13° 17.33°
Obliquity 23.43° 23.43° 23.43°
Right Ascension of the Sun -57.08° -56.86° -56.64°
Sun Declination -19.99° -19.95° -19.90°
Moon 12:42 AM MST (1/20)   12:02 PM MST (1/20)
Length of Visible Light 10h 56m
Length of Day
10h 00m
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