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Astronomy

Dec. 13, 2017 Rise Solar Noon Set
Actual Time 7:07 AM EST 12:21 PM EST 5:36 PM EST
Civil Twilight 6:41 AM EST   6:01 PM EST
Nautical Twilight 6:12 AM EST   6:30 PM EST
Astronomical Twilight 5:44 AM EST   6:59 PM EST
Altitude -0.8° 40.2° -0.8°
Azimuth 115.7° 180.0° 244.3°
Hour Angle of the Sun 78.6° 78.6° -78.6°
Mean Anomaly of the Sun 339.13° 339.34° 339.56°
Obliquity 23.44° 23.44° 23.44°
Right Ascension of the Sun -99.07° -98.82° -98.58°
Sun Declination -23.17° -23.19° -23.20°
Moon 2:57 AM EST   2:50 PM EST
Length of Visible Light 11h 20m
Length of Day
10h 29m
Waning Crescent, 16% of the Moon is Illuminated
Dec 13
Waning Crescent
Dec 18
New
Dec 26
First Quarter
Jan 1
Full
Jan 8
Last Quarter