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Astronomy

Dec. 18, 2017 Rise Solar Noon Set
Actual Time 7:46 AM PST 12:06 PM PST 4:26 PM PST
Civil Twilight 7:12 AM PST   5:01 PM PST
Nautical Twilight 6:34 AM PST   5:39 PM PST
Astronomical Twilight 5:58 AM PST   6:15 PM PST
Altitude -0.8° 20.7° -0.8°
Azimuth 123.7° 180.0° 236.3°
Hour Angle of the Sun 65.0° 65.0° -65.0°
Mean Anomaly of the Sun 344.21° 344.39° 344.56°
Obliquity 23.44° 23.44° 23.44°
Right Ascension of the Sun -93.36° -93.16° -92.96°
Sun Declination -23.40° -23.40° -23.41°
Moon 7:52 AM PST   5:14 PM PST
Length of Visible Light 9h 48m
Length of Day
8h 39m
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