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Astronomy

Dec. 13, 2019 Rise Solar Noon Set
Actual Time 6:51 AM PST 11:47 AM PST 4:43 PM PST
Civil Twilight 6:23 AM PST   5:11 PM PST
Nautical Twilight 5:51 AM PST   5:43 PM PST
Astronomical Twilight 5:21 AM PST   6:13 PM PST
Altitude -0.8° 32.3° -0.8°
Azimuth 117.8° 180.0° 242.1°
Hour Angle of the Sun 74.1° 74.0° -74.0°
Mean Anomaly of the Sun 338.73° 338.93° 339.14°
Obliquity 23.44° 23.44° 23.44°
Right Ascension of the Sun -99.48° -99.25° -99.02°
Sun Declination -23.15° -23.16° -23.18°
Moon 6:21 PM PST   8:13 AM PST
Length of Visible Light 10h 48m
Length of Day
9h 52m
Full, 98% of the Moon is Illuminated
Dec 13
Full
Dec 18
Last Quarter
Dec 26
New
Jan 2
First Quarter
Jan 10
Full