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Astronomy

Dec. 12, 2017 Rise Solar Noon Set
Actual Time 7:14 AM PST 11:59 AM PST 4:44 PM PST
Civil Twilight 6:44 AM PST   5:14 PM PST
Nautical Twilight 6:11 AM PST   5:47 PM PST
Astronomical Twilight 5:38 AM PST   6:19 PM PST
Altitude -0.8° 28.2° -0.8°
Azimuth 119.4° 180.0° 240.5°
Hour Angle of the Sun 71.2° 71.2° -71.2°
Mean Anomaly of the Sun 338.27° 338.47° 338.66°
Obliquity 23.44° 23.44° 23.44°
Right Ascension of the Sun -100.03° -99.81° -99.59°
Sun Declination -23.12° -23.13° -23.14°
Moon 1:50 AM PST (12/12)   1:51 PM PST (12/12)
Length of Visible Light 10h 29m
Length of Day
9h 29m
Waning Crescent, 22% of the Moon is Illuminated
Dec 12
Waning Crescent
Dec 18
New
Dec 26
First Quarter
Jan 1
Full
Jan 8
Last Quarter