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Astronomy

Jan. 20, 2017 Rise Solar Noon Set
Actual Time 7:31 AM PST 12:18 PM PST 5:06 PM PST
Civil Twilight 7:00 AM PST   5:36 PM PST
Nautical Twilight 6:26 AM PST   6:11 PM PST
Astronomical Twilight 5:52 AM PST   6:44 PM PST
Altitude -0.8° 27.5° -0.8°
Azimuth 116.8° 180.0° 243.3°
Hour Angle of the Sun 71.7° 71.8° -71.8°
Mean Anomaly of the Sun 16.98° 17.17° 17.37°
Obliquity 23.43° 23.43° 23.43°
Right Ascension of the Sun -57.02° -56.81° -56.60°
Sun Declination -19.98° -19.94° -19.89°
Moon 1:00 AM PST (1/20)   12:05 PM PST (1/20)
Length of Visible Light 10h 36m
Length of Day
9h 34m
Last Quarter, 38% of the Moon is Illuminated
Jan 21
Last Quarter
Jan 27
New
Feb 3
First Quarter
Feb 10
Full
Feb 18
Last Quarter