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Astronomy

Dec. 16, 2017 Rise Solar Noon Set
Actual Time 7:08 AM PST 11:56 AM PST 4:45 PM PST
Civil Twilight 6:39 AM PST   5:14 PM PST
Nautical Twilight 6:06 AM PST   5:47 PM PST
Astronomical Twilight 5:35 AM PST   6:18 PM PST
Altitude -0.8° 29.4° -0.8°
Azimuth 119.1° 180.0° 240.9°
Hour Angle of the Sun 72.1° 72.1° -72.0°
Mean Anomaly of the Sun 342.21° 342.41° 342.61°
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 5:33 AM PST (12/16)   4:04 PM PST (12/16)
Length of Visible Light 10h 34m
Length of Day
9h 36m
Waning Crescent, 1% of the Moon is Illuminated
Dec 16
Waning Crescent
Dec 18
New
Dec 26
First Quarter
Jan 1
Full
Jan 8
Last Quarter