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Astronomy

Dec. 15, 2017 Rise Solar Noon Set
Actual Time 7:18 AM EST 11:56 AM EST 4:33 PM EST
Civil Twilight 6:47 AM EST   5:04 PM EST
Nautical Twilight 6:12 AM EST   5:39 PM EST
Astronomical Twilight 5:39 AM EST   6:12 PM EST
Altitude -0.8° 25.8° -0.8°
Azimuth 120.7° 180.0° 239.3°
Hour Angle of the Sun 69.4° 69.4° -69.4°
Mean Anomaly of the Sun 341.11° 341.30° 341.49°
Obliquity 23.44° 23.44° 23.44°
Right Ascension of the Sun -96.85° -96.63° -96.42°
Sun Declination -23.29° -23.29° -23.30°
Moon 4:36 AM EST (12/15)   3:15 PM EST (12/15)
Length of Visible Light 10h 17m
Length of Day
9h 15m
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