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Astronomy

Dec. 13, 2017 Rise Solar Noon Set
Actual Time 7:48 AM EST 12:28 PM EST 5:07 PM EST
Civil Twilight 7:17 AM EST   5:38 PM EST
Nautical Twilight 6:43 AM EST   6:12 PM EST
Astronomical Twilight 6:10 AM EST   6:45 PM EST
Altitude -0.8° 26.5° -0.8°
Azimuth 120.3° 180.0° 239.7°
Hour Angle of the Sun 70.0° 69.9° -69.9°
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° -98.60°
Sun Declination -23.18° -23.19° -23.20°
Moon 3:12 AM EST   2:45 PM EST
Length of Visible Light 10h 21m
Length of Day
9h 19m
Waning Crescent, 19% of the Moon is Illuminated
Dec 13
Waning Crescent
Dec 18
New
Dec 26
First Quarter
Jan 1
Full
Jan 8
Last Quarter