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Astronomy

Dec. 18, 2017 Rise Solar Noon Set
Actual Time 7:49 AM PST 11:57 AM PST 4:06 PM PST
Civil Twilight 7:12 AM PST   4:43 PM PST
Nautical Twilight 6:31 AM PST   5:23 PM PST
Astronomical Twilight 5:53 AM PST   6:01 PM PST
Altitude -0.8° 18.0° -0.8°
Azimuth 125.8° 180.0° 234.2°
Hour Angle of the Sun 62.1° 62.1° -62.1°
Mean Anomaly of the Sun 344.21° 344.38° 344.55°
Obliquity 23.44° 23.44° 23.44°
Right Ascension of the Sun -93.36° -93.17° -92.98°
Sun Declination -23.40° -23.40° -23.41°
Moon 7:53 AM PST   4:54 PM PST
Length of Visible Light 9h 31m
Length of Day
8h 17m
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