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Astronomy

Jan. 20, 2017 Rise Solar Noon Set
Actual Time 7:44 AM EST 12:47 PM EST 5:50 PM EST
Civil Twilight 7:16 AM EST   6:18 PM EST
Nautical Twilight 6:45 AM EST   6:49 PM EST
Astronomical Twilight 6:14 AM EST   7:20 PM EST
Altitude -0.8° 33.8° -0.8°
Azimuth 114.4° 180.0° 245.7°
Hour Angle of the Sun 75.7° 75.7° -75.8°
Mean Anomaly of the Sun 16.86° 17.07° 17.28°
Obliquity 23.43° 23.43° 23.43°
Right Ascension of the Sun -57.14° -56.92° -56.70°
Sun Declination -20.01° -19.96° -19.91°
Moon 1:15 AM EST   12:39 PM EST
Length of Visible Light 11h 01m
Length of Day
10h 05m
Last Quarter, 44% of the Moon is Illuminated
Jan 20
Last Quarter
Jan 27
New
Feb 3
First Quarter
Feb 10
Full
Feb 18
Last Quarter