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Astronomy

Dec. 18, 2017 Rise Solar Noon Set
Actual Time 7:31 AM PST 11:50 AM PST 4:09 PM PST
Civil Twilight 6:56 AM PST   4:44 PM PST
Nautical Twilight 6:18 AM PST   5:22 PM PST
Astronomical Twilight 5:41 AM PST   5:58 PM PST
Altitude -0.8° 20.5° -0.8°
Azimuth 123.9° 180.0° 236.1°
Hour Angle of the Sun 64.8° 64.8° -64.8°
Mean Anomaly of the Sun 344.20° 344.37° 344.55°
Obliquity 23.44° 23.44° 23.44°
Right Ascension of the Sun -93.38° -93.18° -92.98°
Sun Declination -23.40° -23.40° -23.41°
Moon 7:36 AM PST   4:56 PM PST
Length of Visible Light 9h 47m
Length of Day
8h 38m
New Moon, 0% of the Moon is Illuminated
Dec 18
New Moon
Dec 26
First Quarter
Jan 1
Full
Jan 8
Last Quarter
Jan 16
New