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Astronomy

Dec. 16, 2017 Rise Solar Noon Set
Actual Time 7:33 AM PST 11:47 AM PST 4:00 PM PST
Civil Twilight 6:57 AM PST   4:36 PM PST
Nautical Twilight 6:18 AM PST   5:16 PM PST
Astronomical Twilight 5:40 AM PST   5:53 PM PST
Altitude -0.8° 19.2° -0.8°
Azimuth 124.8° 180.0° 235.2°
Hour Angle of the Sun 63.4° 63.4° -63.4°
Mean Anomaly of the Sun 342.23° 342.40° 342.57°
Obliquity 23.44° 23.44° 23.44°
Right Ascension of the Sun -95.59° -95.39° -95.20°
Sun Declination -23.34° -23.34° -23.35°
Moon 5:47 AM PST   3:28 PM PST
Length of Visible Light 9h 39m
Length of Day
8h 27m
Waning Crescent, 3% of the Moon is Illuminated
Dec 16
Waning Crescent
Dec 18
New
Dec 26
First Quarter
Jan 1
Full
Jan 8
Last Quarter