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Astronomy

Dec. 10, 2017 Rise Solar Noon Set
Actual Time 7:40 AM PST 12:05 PM PST 4:29 PM PST
Civil Twilight 7:06 AM PST   5:03 PM PST
Nautical Twilight 6:29 AM PST   5:40 PM PST
Astronomical Twilight 5:53 AM PST   6:16 PM PST
Altitude -0.8° 21.8° -0.8°
Azimuth 122.6° 180.0° 237.4°
Hour Angle of the Sun 66.2° 66.2° -66.1°
Mean Anomaly of the Sun 336.32° 336.50° 336.68°
Obliquity 23.44° 23.44° 23.44°
Right Ascension of the Sun -102.21° -102.01° -101.80°
Sun Declination -22.96° -22.98° -22.99°
Moon No Moon Rise   1:00 PM PST (12/10)
Length of Visible Light 9h 57m
Length of Day
8h 49m
Last Quarter, 43% of the Moon is Illuminated
Dec 10
Last Quarter
Dec 18
New
Dec 26
First Quarter
Jan 1
Full
Jan 8
Last Quarter