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Astronomy

Dec. 11, 2017 Rise Solar Noon Set
Actual Time 7:13 AM PST 12:02 PM PST 4:50 PM PST
Civil Twilight 6:44 AM PST   5:19 PM PST
Nautical Twilight 6:11 AM PST   5:52 PM PST
Astronomical Twilight 5:39 AM PST   6:24 PM PST
Altitude -0.8° 29.3° -0.8°
Azimuth 118.9° 180.0° 241.1°
Hour Angle of the Sun 72.0° 72.0° -72.0°
Mean Anomaly of the Sun 337.29° 337.48° 337.68°
Obliquity 23.44° 23.44° 23.44°
Right Ascension of the Sun -101.13° -100.91° -100.69°
Sun Declination -23.04° -23.06° -23.07°
Moon 12:53 AM PST   1:23 PM PST
Length of Visible Light 10h 34m
Length of Day
9h 36m
Waning Crescent, 35% of the Moon is Illuminated
Dec 11
Waning Crescent
Dec 18
New
Dec 26
First Quarter
Jan 1
Full
Jan 8
Last Quarter