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Astronomy

Dec. 13, 2017 Rise Solar Noon Set
Actual Time 8:32 AM AKST 11:55 AM AKST 3:19 PM AKST
Civil Twilight 7:43 AM AKST   4:08 PM AKST
Nautical Twilight 6:52 AM AKST   4:59 PM AKST
Astronomical Twilight 6:05 AM AKST   5:46 PM AKST
Altitude -0.8° 9.8° -0.8°
Azimuth 134.5° 180.0° 225.4°
Hour Angle of the Sun 50.8° 50.8° -50.8°
Mean Anomaly of the Sun 339.35° 339.49° 339.63°
Obliquity 23.44° 23.44° 23.44°
Right Ascension of the Sun -98.82° -98.66° -98.50°
Sun Declination -23.19° -23.20° -23.20°
Moon 3:08 AM AKST   1:53 PM AKST
Length of Visible Light 8h 25m
Length of Day
6h 46m
Waning Crescent, 16% of the Moon is Illuminated
Dec 13
Waning Crescent
Dec 18
New
Dec 26
First Quarter
Jan 1
Full
Jan 8
Last Quarter