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Astronomy

Dec. 16, 2017 Rise Solar Noon Set
Actual Time 7:44 AM PST 11:53 AM PST 4:03 PM PST
Civil Twilight 7:07 AM PST   4:40 PM PST
Nautical Twilight 6:27 AM PST   5:20 PM PST
Astronomical Twilight 5:49 AM PST   5:58 PM PST
Altitude -0.8° 18.2° -0.8°
Azimuth 125.5° 180.0° 234.5°
Hour Angle of the Sun 62.5° 62.5° -62.4°
Mean Anomaly of the Sun 342.23° 342.41° 342.58°
Obliquity 23.44° 23.44° 23.44°
Right Ascension of the Sun -95.58° -95.39° -95.20°
Sun Declination -23.34° -23.34° -23.35°
Moon 5:57 AM PST (12/16)   3:32 PM PST (12/16)
Length of Visible Light 9h 33m
Length of Day
8h 19m
Waning Crescent, 1% of the Moon is Illuminated
Dec 17
Waning Crescent
Dec 18
New
Dec 26
First Quarter
Jan 1
Full
Jan 8
Last Quarter