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Astronomy

Dec. 13, 2017 Rise Solar Noon Set
Actual Time 7:07 AM EST 12:17 PM EST 5:28 PM EST
Civil Twilight 6:41 AM EST   5:53 PM EST
Nautical Twilight 6:11 AM EST   6:23 PM EST
Astronomical Twilight 5:43 AM EST   6:52 PM EST
Altitude -0.8° 38.2° -0.8°
Azimuth 116.1° 180.0° 243.9°
Hour Angle of the Sun 77.6° 77.6° -77.6°
Mean Anomaly of the Sun 339.13° 339.34° 339.55°
Obliquity 23.44° 23.44° 23.44°
Right Ascension of the Sun -99.07° -98.83° -98.59°
Sun Declination -23.17° -23.19° -23.20°
Moon 2:54 AM EST   2:45 PM EST
Length of Visible Light 11h 12m
Length of Day
10h 20m
Waning Crescent, 17% of the Moon is Illuminated
Dec 13
Waning Crescent
Dec 18
New
Dec 26
First Quarter
Jan 1
Full
Jan 8
Last Quarter