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Astronomy

Jan. 20, 2017 Rise Solar Noon Set
Actual Time 7:12 AM EST 11:56 AM EST 4:40 PM EST
Civil Twilight 6:41 AM EST   5:12 PM EST
Nautical Twilight 6:05 AM EST   5:47 PM EST
Astronomical Twilight 5:31 AM EST   6:21 PM EST
Altitude -0.8° 26.3° -0.8°
Azimuth 117.4° 180.0° 242.8°
Hour Angle of the Sun 70.9° 71.0° -71.0°
Mean Anomaly of the Sun 16.84° 17.04° 17.23°
Obliquity 23.43° 23.43° 23.43°
Right Ascension of the Sun -57.16° -56.96° -56.75°
Sun Declination -20.01° -19.97° -19.92°
Moon 12:31 AM EST   11:37 AM EST
Length of Visible Light 10h 30m
Length of Day
9h 28m
Last Quarter, 41% of the Moon is Illuminated
Jan 20
Last Quarter
Jan 27
New
Feb 3
First Quarter
Feb 10
Full
Feb 18
Last Quarter