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Astronomy

Dec. 13, 2017 Rise Solar Noon Set
Actual Time 8:32 AM EST 12:48 PM EST 5:03 PM EST
Civil Twilight 7:56 AM EST   5:39 PM EST
Nautical Twilight 7:17 AM EST   6:18 PM EST
Astronomical Twilight 6:40 AM EST   6:55 PM EST
Altitude -0.8° 19.5° -0.8°
Azimuth 124.4° 180.0° 235.6°
Hour Angle of the Sun 63.9° 63.9° -63.8°
Mean Anomaly of the Sun 339.19° 339.36° 339.54°
Obliquity 23.44° 23.44° 23.44°
Right Ascension of the Sun -99.00° -98.80° -98.61°
Sun Declination -23.18° -23.19° -23.20°
Moon 3:39 AM EST   2:58 PM EST
Length of Visible Light 9h 42m
Length of Day
8h 30m
Waning Crescent, 17% of the Moon is Illuminated
Dec 13
Waning Crescent
Dec 18
New
Dec 26
First Quarter
Jan 1
Full
Jan 8
Last Quarter