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Astronomy

Dec. 16, 2017 Rise Solar Noon Set
Actual Time 7:17 AM PST 12:01 PM PST 4:45 PM PST
Civil Twilight 6:47 AM PST   5:15 PM PST
Nautical Twilight 6:13 AM PST   5:48 PM PST
Astronomical Twilight 5:41 AM PST   6:21 PM PST
Altitude -0.8° 28.0° -0.8°
Azimuth 119.7° 180.0° 240.3°
Hour Angle of the Sun 71.1° 71.1° -71.1°
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° -95.17°
Sun Declination -23.34° -23.34° -23.35°
Moon 5:40 AM PST   4:05 PM PST
Length of Visible Light 10h 28m
Length of Day
9h 28m
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