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Astronomy

Dec. 10, 2017 Rise Solar Noon Set
Actual Time 7:20 AM PST 11:36 AM PST 3:52 PM PST
Civil Twilight 6:44 AM PST   4:27 PM PST
Nautical Twilight 6:05 AM PST   5:06 PM PST
Astronomical Twilight 5:28 AM PST   5:44 PM PST
Altitude -0.8° 19.6° -0.8°
Azimuth 124.1° 180.0° 235.8°
Hour Angle of the Sun 64.0° 64.0° -64.0°
Mean Anomaly of the Sun 336.30° 336.48° 336.66°
Obliquity 23.44° 23.44° 23.44°
Right Ascension of the Sun -102.22° -102.03° -101.83°
Sun Declination -22.96° -22.97° -22.99°
Moon No Moon Rise   12:32 PM PST (12/10)
Length of Visible Light 9h 43m
Length of Day
8h 31m
Last Quarter, 40% of the Moon is Illuminated
Dec 11
Last Quarter
Dec 18
New
Dec 26
First Quarter
Jan 1
Full
Jan 8
Last Quarter