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Astronomy

Dec. 16, 2017 Rise Solar Noon Set
Actual Time 7:07 AM PST 11:54 AM PST 4:41 PM PST
Civil Twilight 6:37 AM PST   5:10 PM PST
Nautical Twilight 6:05 AM PST   5:43 PM PST
Astronomical Twilight 5:33 AM PST   6:15 PM PST
Altitude -0.8° 28.9° -0.8°
Azimuth 119.3° 180.0° 240.7°
Hour Angle of the Sun 71.7° 71.7° -71.7°
Mean Anomaly of the Sun 342.21° 342.41° 342.60°
Obliquity 23.44° 23.44° 23.44°
Right Ascension of the Sun -95.61° -95.39° -95.17°
Sun Declination -23.33° -23.34° -23.35°
Moon 5:31 AM PST   4:00 PM PST
Length of Visible Light 10h 32m
Length of Day
9h 33m
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