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Astronomy

Jan. 20, 2017 Rise Solar Noon Set
Actual Time 7:13 AM EST 12:03 PM EST 4:53 PM EST
Civil Twilight 6:43 AM EST   5:23 PM EST
Nautical Twilight 6:09 AM EST   5:57 PM EST
Astronomical Twilight 5:36 AM EST   6:30 PM EST
Altitude -0.8° 28.5° -0.8°
Azimuth 116.4° 180.0° 243.7°
Hour Angle of the Sun 72.4° 72.5° -72.5°
Mean Anomaly of the Sun 16.84° 17.04° 17.24°
Obliquity 23.43° 23.43° 23.43°
Right Ascension of the Sun -57.16° -56.95° -56.74°
Sun Declination -20.01° -19.97° -19.92°
Moon 12:35 AM EST (1/20)   11:47 AM EST (1/20)
Length of Visible Light 10h 40m
Length of Day
9h 39m
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