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Astronomy

Dec. 18, 2017 Rise Solar Noon Set
Actual Time 7:09 AM PST 11:57 AM PST 4:45 PM PST
Civil Twilight 6:40 AM PST   5:15 PM PST
Nautical Twilight 6:07 AM PST   5:47 PM PST
Astronomical Twilight 5:36 AM PST   6:19 PM PST
Altitude -0.8° 29.4° -0.8°
Azimuth 119.2° 180.0° 240.8°
Hour Angle of the Sun 72.0° 72.0° -72.0°
Mean Anomaly of the Sun 344.18° 344.38° 344.58°
Obliquity 23.44° 23.44° 23.44°
Right Ascension of the Sun -93.39° -93.17° -92.95°
Sun Declination -23.40° -23.40° -23.41°
Moon 7:19 AM PST   5:29 PM PST
Length of Visible Light 10h 34m
Length of Day
9h 36m
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