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Astronomy

Dec. 12, 2017 Rise Solar Noon Set
Actual Time 7:33 AM EST 12:05 PM EST 4:36 PM EST
Civil Twilight 7:01 AM EST   5:09 PM EST
Nautical Twilight 6:25 AM EST   5:44 PM EST
Astronomical Twilight 5:51 AM EST   6:19 PM EST
Altitude -0.8° 23.9° -0.8°
Azimuth 121.5° 180.0° 238.4°
Hour Angle of the Sun 67.9° 67.9° -67.9°
Mean Anomaly of the Sun 338.16° 338.35° 338.53°
Obliquity 23.44° 23.44° 23.44°
Right Ascension of the Sun -100.15° -99.94° -99.73°
Sun Declination -23.11° -23.12° -23.13°
Moon 1:49 AM EST   1:51 PM EST
Length of Visible Light 10h 07m
Length of Day
9h 03m
Waning Crescent, 26% of the Moon is Illuminated
Dec 12
Waning Crescent
Dec 18
New
Dec 26
First Quarter
Jan 1
Full
Jan 8
Last Quarter