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Astronomy

Dec. 13, 2017 Rise Solar Noon Set
Actual Time 7:29 AM EST 12:28 PM EST 5:26 PM EST
Civil Twilight 7:02 AM EST   5:53 PM EST
Nautical Twilight 6:31 AM EST   6:24 PM EST
Astronomical Twilight 6:00 AM EST   6:55 PM EST
Altitude -0.8° 33.0° -0.8°
Azimuth 117.6° 180.0° 242.3°
Hour Angle of the Sun 74.5° 74.5° -74.5°
Mean Anomaly of the Sun 339.15° 339.35° 339.55°
Obliquity 23.44° 23.44° 23.44°
Right Ascension of the Sun -99.05° -98.82° -98.59°
Sun Declination -23.17° -23.19° -23.20°
Moon 3:08 AM EST   2:51 PM EST
Length of Visible Light 10h 51m
Length of Day
9h 56m
Waning Crescent, 22% of the Moon is Illuminated
Dec 13
Waning Crescent
Dec 18
New
Dec 26
First Quarter
Jan 1
Full
Jan 8
Last Quarter