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Astronomy

Dec. 13, 2017 Rise Solar Noon Set
Actual Time 10:07 AM AKST 12:59 PM AKST 3:51 PM AKST
Civil Twilight 9:07 AM AKST   4:51 PM AKST
Nautical Twilight 8:09 AM AKST   5:49 PM AKST
Astronomical Twilight 7:17 AM AKST   6:42 PM AKST
Altitude -0.8° 6.1° -0.8°
Azimuth 141.1° 180.0° 218.8°
Hour Angle of the Sun 43.0° 43.0° -43.0°
Mean Anomaly of the Sun 339.42° 339.53° 339.65°
Obliquity 23.44° 23.44° 23.44°
Right Ascension of the Sun -98.74° -98.61° -98.48°
Sun Declination -23.19° -23.20° -23.21°
Moon 4:22 AM AKST   2:49 PM AKST
Length of Visible Light 7h 43m
Length of Day
5h 44m
Waning Crescent, 18% of the Moon is Illuminated
Dec 13
Waning Crescent
Dec 18
New
Dec 26
First Quarter
Jan 1
Full
Jan 8
Last Quarter