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Astronomy

Dec. 13, 2017 Rise Solar Noon Set
Actual Time 7:13 AM EST 11:53 AM EST 4:33 PM EST
Civil Twilight 6:42 AM EST   5:04 PM EST
Nautical Twilight 6:08 AM EST   5:38 PM EST
Astronomical Twilight 5:35 AM EST   6:11 PM EST
Altitude -0.8° 26.6° -0.8°
Azimuth 120.2° 180.0° 239.8°
Hour Angle of the Sun 70.0° 70.0° -70.0°
Mean Anomaly of the Sun 339.13° 339.33° 339.52°
Obliquity 23.44° 23.44° 23.44°
Right Ascension of the Sun -99.06° -98.85° -98.63°
Sun Declination -23.17° -23.19° -23.20°
Moon 2:36 AM EST   2:10 PM EST
Length of Visible Light 10h 21m
Length of Day
9h 20m
Waning Crescent, 18% of the Moon is Illuminated
Dec 13
Waning Crescent
Dec 18
New
Dec 26
First Quarter
Jan 1
Full
Jan 8
Last Quarter