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Astronomy

Dec. 13, 2017 Rise Solar Noon Set
Actual Time 7:13 AM EST 12:25 PM EST 5:37 PM EST
Civil Twilight 6:47 AM EST   6:02 PM EST
Nautical Twilight 6:18 AM EST   6:32 PM EST
Astronomical Twilight 5:49 AM EST   7:00 PM EST
Altitude -0.8° 39.0° -0.8°
Azimuth 115.9° 180.0° 244.0°
Hour Angle of the Sun 78.0° 78.0° -78.0°
Mean Anomaly of the Sun 339.13° 339.35° 339.56°
Obliquity 23.44° 23.44° 23.44°
Right Ascension of the Sun -99.06° -98.82° -98.58°
Sun Declination -23.17° -23.19° -23.20°
Moon 3:01 AM EST (12/13)   2:53 PM EST (12/13)
Length of Visible Light 11h 15m
Length of Day
10h 24m
Waning Crescent, 15% of the Moon is Illuminated
Dec 13
Waning Crescent
Dec 18
New
Dec 26
First Quarter
Jan 1
Full
Jan 8
Last Quarter