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Astronomy

Dec. 15, 2017 Rise Solar Noon Set
Actual Time 7:31 AM EST 12:09 PM EST 4:46 PM EST
Civil Twilight 7:00 AM EST   5:17 PM EST
Nautical Twilight 6:26 AM EST   5:52 PM EST
Astronomical Twilight 5:52 AM EST   6:25 PM EST
Altitude -0.8° 25.7° -0.8°
Azimuth 120.8° 180.0° 239.2°
Hour Angle of the Sun 69.3° 69.3° -69.3°
Mean Anomaly of the Sun 341.12° 341.31° 341.50°
Obliquity 23.44° 23.44° 23.44°
Right Ascension of the Sun -96.84° -96.62° -96.41°
Sun Declination -23.29° -23.30° -23.30°
Moon 4:50 AM EST (12/15)   3:28 PM EST (12/15)
Length of Visible Light 10h 16m
Length of Day
9h 14m
Waning Crescent, 4% of the Moon is Illuminated
Dec 15
Waning Crescent
Dec 18
New
Dec 26
First Quarter
Jan 1
Full
Jan 8
Last Quarter