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Astronomy

Dec. 15, 2017 Rise Solar Noon Set
Actual Time 7:56 AM EST 12:39 PM EST 5:21 PM EST
Civil Twilight 7:26 AM EST   5:51 PM EST
Nautical Twilight 6:52 AM EST   6:25 PM EST
Astronomical Twilight 6:20 AM EST   6:58 PM EST
Altitude -0.8° 27.4° -0.8°
Azimuth 120.0° 180.0° 240.0°
Hour Angle of the Sun 70.6° 70.6° -70.6°
Mean Anomaly of the Sun 341.13° 341.33° 341.52°
Obliquity 23.44° 23.44° 23.44°
Right Ascension of the Sun -96.82° -96.60° -96.38°
Sun Declination -23.29° -23.30° -23.31°
Moon 5:18 AM EST   4:02 PM EST
Length of Visible Light 10h 25m
Length of Day
9h 24m
Waning Crescent, 5% of the Moon is Illuminated
Dec 15
Waning Crescent
Dec 18
New
Dec 26
First Quarter
Jan 1
Full
Jan 8
Last Quarter