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Astronomy

Dec. 18, 2017 Rise Solar Noon Set
Actual Time 8:04 AM PST 12:09 PM PST 4:15 PM PST
Civil Twilight 7:26 AM PST   4:52 PM PST
Nautical Twilight 6:45 AM PST   5:33 PM PST
Astronomical Twilight 6:06 AM PST   6:12 PM PST
Altitude -0.8° 17.3° -0.8°
Azimuth 126.3° 180.0° 233.6°
Hour Angle of the Sun 61.3° 61.3° -61.3°
Mean Anomaly of the Sun 344.22° 344.39° 344.56°
Obliquity 23.44° 23.44° 23.44°
Right Ascension of the Sun -93.35° -93.16° -92.97°
Sun Declination -23.40° -23.40° -23.41°
Moon 8:08 AM PST   5:04 PM PST
Length of Visible Light 9h 26m
Length of Day
8h 10m
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