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Astronomy

Jan. 20, 2017 Rise Solar Noon Set
Actual Time 6:59 AM AST 12:35 PM AST 6:11 PM AST
Civil Twilight 6:36 AM AST   6:34 PM AST
Nautical Twilight 6:09 AM AST   7:01 PM AST
Astronomical Twilight 5:43 AM AST   7:27 PM AST
Altitude -0.8° 51.6° -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° -56.72°
Sun Declination -20.02° -19.97° -19.92°
Moon 12:47 AM AST (1/20)   12:42 PM AST (1/20)
Length of Visible Light 11h 58m
Length of Day
11h 12m
Last Quarter, 40% of the Moon is Illuminated
Jan 20
Last Quarter
Jan 27
New
Feb 3
First Quarter
Feb 10
Full
Feb 18
Last Quarter