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Astronomy

Dec. 13, 2019 Rise Solar Noon Set
Actual Time 7:09 AM PST 11:56 AM PST 4:42 PM PST
Civil Twilight 6:39 AM PST   5:11 PM PST
Nautical Twilight 6:06 AM PST   5:45 PM PST
Astronomical Twilight 5:34 AM PST   6:17 PM PST
Altitude -0.8° 28.7° -0.8°
Azimuth 119.2° 180.0° 240.7°
Hour Angle of the Sun 71.6° 71.6° -71.6°
Mean Anomaly of the Sun 338.74° 338.94° 339.13°
Obliquity 23.44° 23.44° 23.44°
Right Ascension of the Sun -99.46° -99.24° -99.02°
Sun Declination -23.15° -23.16° -23.18°
Moon 6:20 PM PST   8:33 AM PST
Length of Visible Light 10h 32m
Length of Day
9h 33m
Full, 99% of the Moon is Illuminated
Dec 13
Full
Dec 18
Last Quarter
Dec 26
New
Jan 2
First Quarter
Jan 10
Full