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Astronomy

Dec. 13, 2019 Rise Solar Noon Set
Actual Time 6:57 AM PST 11:50 AM PST 4:42 PM PST
Civil Twilight 6:29 AM PST   5:11 PM PST
Nautical Twilight 5:57 AM PST   5:43 PM PST
Astronomical Twilight 5:26 AM PST   6:14 PM PST
Altitude -0.8° 30.9° -0.8°
Azimuth 118.4° 180.0° 241.6°
Hour Angle of the Sun 73.1° 73.1° -73.1°
Mean Anomaly of the Sun 338.73° 338.93° 339.13°
Obliquity 23.44° 23.44° 23.44°
Right Ascension of the Sun -99.47° -99.25° -99.02°
Sun Declination -23.15° -23.16° -23.18°
Moon 6:20 PM PST (12/13)   8:20 AM PST (12/13)
Length of Visible Light 10h 41m
Length of Day
9h 44m
Waning Gibbous, 96% of the Moon is Illuminated
Dec 13
Waning Gibbous
Dec 18
Last Quarter
Dec 26
New
Jan 2
First Quarter
Jan 10
Full