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Astronomy

Dec. 12, 2017 Rise Solar Noon Set
Actual Time 8:06 AM EST 12:31 PM EST 4:56 PM EST
Civil Twilight 7:33 AM EST   5:30 PM EST
Nautical Twilight 6:56 AM EST   6:07 PM EST
Astronomical Twilight 6:20 AM EST   6:42 PM EST
Altitude -0.8° 21.9° -0.8°
Azimuth 122.7° 180.0° 237.3°
Hour Angle of the Sun 66.2° 66.2° -66.1°
Mean Anomaly of the Sun 338.18° 338.37° 338.55°
Obliquity 23.44° 23.44° 23.44°
Right Ascension of the Sun -100.12° -99.92° -99.72°
Sun Declination -23.11° -23.12° -23.13°
Moon 2:17 AM EST   2:17 PM EST
Length of Visible Light 9h 56m
Length of Day
8h 49m
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