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Astronomy

Dec. 13, 2017 Rise Solar Noon Set
Actual Time 7:19 AM EST 11:51 AM EST 4:22 PM EST
Civil Twilight 6:47 AM EST   4:54 PM EST
Nautical Twilight 6:11 AM EST   5:30 PM EST
Astronomical Twilight 5:36 AM EST   6:05 PM EST
Altitude -0.8° 23.9° -0.8°
Azimuth 121.6° 180.0° 238.4°
Hour Angle of the Sun 67.9° 67.9° -67.9°
Mean Anomaly of the Sun 339.14° 339.32° 339.51°
Obliquity 23.44° 23.44° 23.44°
Right Ascension of the Sun -99.06° -98.85° -98.64°
Sun Declination -23.17° -23.19° -23.20°
Moon 2:36 AM EST   2:05 PM EST
Length of Visible Light 10h 07m
Length of Day
9h 03m
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