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Astronomy

Dec. 11, 2017 Rise Solar Noon Set
Actual Time 6:41 AM PST 11:42 AM PST 4:43 PM PST
Civil Twilight 6:13 AM PST   5:10 PM PST
Nautical Twilight 5:43 AM PST   5:41 PM PST
Astronomical Twilight 5:13 AM PST   6:11 PM PST
Altitude -0.8° 34.2° -0.8°
Azimuth 117.1° 180.0° 242.8°
Hour Angle of the Sun 75.3° 75.2° -75.2°
Mean Anomaly of the Sun 337.26° 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 12:33 AM PST (12/11)   1:03 PM PST (12/11)
Length of Visible Light 10h 56m
Length of Day
10h 02m
Waning Crescent, 31% of the Moon is Illuminated
Dec 11
Waning Crescent
Dec 18
New
Dec 26
First Quarter
Jan 1
Full
Jan 8
Last Quarter