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Astronomy

Jan. 20, 2017 Rise Solar Noon Set
Actual Time 6:54 AM PST 11:50 AM PST 4:46 PM PST
Civil Twilight 6:25 AM PST   5:15 PM PST
Nautical Twilight 5:52 AM PST   5:48 PM PST
Astronomical Twilight 5:21 AM PST   6:20 PM PST
Altitude -0.8° 30.9° -0.8°
Azimuth 115.4° 180.0° 244.7°
Hour Angle of the Sun 73.9° 74.0° -74.0°
Mean Anomaly of the Sun 16.95° 17.16° 17.36°
Obliquity 23.43° 23.43° 23.43°
Right Ascension of the Sun -57.04° -56.83° -56.61°
Sun Declination -19.99° -19.94° -19.90°
Moon 12:26 AM PST (1/20)   11:41 AM PST (1/20)
Length of Visible Light 10h 50m
Length of Day
9h 52m
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