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Astronomy

Dec. 12, 2017 Rise Solar Noon Set
Actual Time 7:23 AM EST 12:07 PM EST 4:51 PM EST
Civil Twilight 6:53 AM EST   5:21 PM EST
Nautical Twilight 6:20 AM EST   5:55 PM EST
Astronomical Twilight 5:47 AM EST   6:27 PM EST
Altitude -0.8° 27.8° -0.8°
Azimuth 119.6° 180.0° 240.4°
Hour Angle of the Sun 71.0° 71.0° -70.9°
Mean Anomaly of the Sun 338.16° 338.35° 338.54°
Obliquity 23.44° 23.44° 23.44°
Right Ascension of the Sun -100.16° -99.94° -99.72°
Sun Declination -23.11° -23.12° -23.13°
Moon 1:51 AM EST   1:56 PM EST
Length of Visible Light 10h 27m
Length of Day
9h 27m
Waning Crescent, 25% of the Moon is Illuminated
Dec 12
Waning Crescent
Dec 18
New
Dec 26
First Quarter
Jan 1
Full
Jan 8
Last Quarter