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Astronomy

Jan. 20, 2017 Rise Solar Noon Set
Actual Time 6:24 AM AST 12:09 PM AST 5:53 PM AST
Civil Twilight 6:02 AM AST   6:16 PM AST
Nautical Twilight 5:36 AM AST   6:42 PM AST
Astronomical Twilight 5:10 AM AST   7:07 PM AST
Altitude -0.8° 56.9° -0.8°
Azimuth 110.4° 180.0° 249.7°
Hour Angle of the Sun 86.1° 86.1° -86.1°
Mean Anomaly of the Sun 16.77° 17.00° 17.24°
Obliquity 23.43° 23.43° 23.43°
Right Ascension of the Sun -57.24° -56.99° -56.74°
Sun Declination -20.03° -19.98° -19.92°
Moon 12:16 AM AST   12:19 PM AST
Length of Visible Light 12h 13m
Length of Day
11h 28m
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