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Astronomy

Dec. 11, 2017 Rise Solar Noon Set
Actual Time 6:52 AM PST 11:49 AM PST 4:47 PM PST
Civil Twilight 6:24 AM PST   5:15 PM PST
Nautical Twilight 5:53 AM PST   5:46 PM PST
Astronomical Twilight 5:22 AM PST   6:17 PM PST
Altitude -0.8° 32.8° -0.8°
Azimuth 117.6° 180.0° 242.4°
Hour Angle of the Sun 74.4° 74.4° -74.4°
Mean Anomaly of the Sun 337.27° 337.48° 337.68°
Obliquity 23.44° 23.44° 23.44°
Right Ascension of the Sun -101.14° -100.92° -100.69°
Sun Declination -23.04° -23.06° -23.07°
Moon 12:41 AM PST (12/11)   1:11 PM PST (12/11)
Length of Visible Light 10h 50m
Length of Day
9h 55m
Waning Crescent, 30% of the Moon is Illuminated
Dec 12
Waning Crescent
Dec 18
New
Dec 26
First Quarter
Jan 1
Full
Jan 8
Last Quarter