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Astronomy

Dec. 11, 2017 Rise Solar Noon Set
Actual Time 7:36 AM PST 12:09 PM PST 4:42 PM PST
Civil Twilight 7:04 AM PST   5:14 PM PST
Nautical Twilight 6:29 AM PST   5:50 PM PST
Astronomical Twilight 5:54 AM PST   6:24 PM PST
Altitude -0.8° 24.3° -0.8°
Azimuth 121.2° 180.0° 238.7°
Hour Angle of the Sun 68.3° 68.3° -68.3°
Mean Anomaly of the Sun 337.30° 337.49° 337.68°
Obliquity 23.44° 23.44° 23.44°
Right Ascension of the Sun -101.11° -100.90° -100.69°
Sun Declination -23.04° -23.06° -23.07°
Moon 12:59 AM PST (12/11)   1:32 PM PST (12/11)
Length of Visible Light 10h 10m
Length of Day
9h 06m
Waning Crescent, 32% of the Moon is Illuminated
Dec 11
Waning Crescent
Dec 18
New
Dec 26
First Quarter
Jan 1
Full
Jan 8
Last Quarter