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Astronomy

Dec. 13, 2017 Rise Solar Noon Set
Actual Time 7:59 AM EST 12:38 PM EST 5:17 PM EST
Civil Twilight 7:28 AM EST   5:47 PM EST
Nautical Twilight 6:53 AM EST   6:22 PM EST
Astronomical Twilight 6:20 AM EST   6:55 PM EST
Altitude -0.8° 26.2° -0.8°
Azimuth 120.4° 180.0° 239.6°
Hour Angle of the Sun 69.7° 69.7° -69.7°
Mean Anomaly of the Sun 339.17° 339.36° 339.55°
Obliquity 23.44° 23.44° 23.44°
Right Ascension of the Sun -99.03° -98.81° -98.60°
Sun Declination -23.18° -23.19° -23.20°
Moon 3:23 AM EST   2:55 PM EST
Length of Visible Light 10h 19m
Length of Day
9h 18m
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