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Astronomy

Dec. 13, 2017 Rise Solar Noon Set
Actual Time 7:55 AM EST 12:29 PM EST 5:02 PM EST
Civil Twilight 7:23 AM EST   5:34 PM EST
Nautical Twilight 6:48 AM EST   6:10 PM EST
Astronomical Twilight 6:14 AM EST   6:44 PM EST
Altitude -0.8° 24.5° -0.8°
Azimuth 121.3° 180.0° 238.7°
Hour Angle of the Sun 68.4° 68.4° -68.4°
Mean Anomaly of the Sun 339.16° 339.35° 339.54°
Obliquity 23.44° 23.44° 23.44°
Right Ascension of the Sun -99.03° -98.82° -98.61°
Sun Declination -23.18° -23.19° -23.20°
Moon 3:15 AM EST   2:44 PM EST
Length of Visible Light 10h 11m
Length of Day
9h 07m
Waning Crescent, 16% of the Moon is Illuminated
Dec 13
Waning Crescent
Dec 18
New
Dec 26
First Quarter
Jan 1
Full
Jan 8
Last Quarter