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Astronomy

Dec. 11, 2017 Rise Solar Noon Set
Actual Time 6:45 AM PST 11:43 AM PST 4:41 PM PST
Civil Twilight 6:17 AM PST   5:08 PM PST
Nautical Twilight 5:46 AM PST   5:40 PM PST
Astronomical Twilight 5:15 AM PST   6:10 PM PST
Altitude -0.8° 33.0° -0.8°
Azimuth 117.5° 180.0° 242.4°
Hour Angle of the Sun 74.5° 74.5° -74.5°
Mean Anomaly of the Sun 337.27° 337.47° 337.67°
Obliquity 23.44° 23.44° 23.44°
Right Ascension of the Sun -101.15° -100.92° -100.69°
Sun Declination -23.04° -23.06° -23.07°
Moon 12:34 AM PST   1:04 PM PST
Length of Visible Light 10h 51m
Length of Day
9h 56m
Waning Crescent, 34% of the Moon is Illuminated
Dec 11
Waning Crescent
Dec 18
New
Dec 26
First Quarter
Jan 1
Full
Jan 8
Last Quarter