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Astronomy

Dec. 16, 2017 Rise Solar Noon Set
Actual Time 7:15 AM PST 12:02 PM PST 4:49 PM PST
Civil Twilight 6:46 AM PST   5:19 PM PST
Nautical Twilight 6:13 AM PST   5:52 PM PST
Astronomical Twilight 5:41 AM PST   6:24 PM PST
Altitude -0.8° 29.0° -0.8°
Azimuth 119.3° 180.0° 240.7°
Hour Angle of the Sun 71.8° 71.7° -71.7°
Mean Anomaly of the Sun 342.22° 342.41° 342.61°
Obliquity 23.44° 23.44° 23.44°
Right Ascension of the Sun -95.60° -95.38° -95.16°
Sun Declination -23.34° -23.34° -23.35°
Moon 5:40 AM PST   4:09 PM PST
Length of Visible Light 10h 32m
Length of Day
9h 34m
Waning Crescent, 2% of the Moon is Illuminated
Dec 16
Waning Crescent
Dec 18
New
Dec 26
First Quarter
Jan 1
Full
Jan 8
Last Quarter