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Astronomy

Jan. 20, 2017 Rise Solar Noon Set
Actual Time 6:54 AM AST 12:30 PM AST 6:07 PM AST
Civil Twilight 6:31 AM AST   6:30 PM AST
Nautical Twilight 6:05 AM AST   6:56 PM AST
Astronomical Twilight 5:38 AM AST   7:23 PM AST
Altitude -0.8° 51.7° -0.8°
Azimuth 110.9° 180.0° 249.3°
Hour Angle of the Sun 84.0° 84.0° -84.0°
Mean Anomaly of the Sun 16.79° 17.02° 17.25°
Obliquity 23.43° 23.43° 23.43°
Right Ascension of the Sun -57.22° -56.97° -56.73°
Sun Declination -20.02° -19.97° -19.92°
Moon 12:42 AM AST   12:37 PM AST
Length of Visible Light 11h 58m
Length of Day
11h 12m
Last Quarter, 45% of the Moon is Illuminated
Jan 20
Last Quarter
Jan 27
New
Feb 3
First Quarter
Feb 10
Full
Feb 18
Last Quarter