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Astronomy

Dec. 11, 2017 Rise Solar Noon Set
Actual Time 6:49 AM PST 11:46 AM PST 4:42 PM PST
Civil Twilight 6:21 AM PST   5:10 PM PST
Nautical Twilight 5:50 AM PST   5:41 PM PST
Astronomical Twilight 5:19 AM PST   6:12 PM PST
Altitude -0.8° 32.4° -0.8°
Azimuth 117.7° 180.0° 242.2°
Hour Angle of the Sun 74.1° 74.1° -74.1°
Mean Anomaly of the Sun 337.27° 337.47° 337.68°
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 12:37 AM PST   1:07 PM PST
Length of Visible Light 10h 48m
Length of Day
9h 53m
Last Quarter, 36% of the Moon is Illuminated
Dec 11
Last Quarter
Dec 18
New
Dec 26
First Quarter
Jan 1
Full
Jan 8
Last Quarter