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Astronomy

Dec. 17, 2017 Rise Solar Noon Set
Actual Time 7:43 AM PST 12:08 PM PST 4:32 PM PST
Civil Twilight 7:10 AM PST   5:05 PM PST
Nautical Twilight 6:33 AM PST   5:43 PM PST
Astronomical Twilight 5:57 AM PST   6:18 PM PST
Altitude -0.8° 21.9° -0.8°
Azimuth 123.0° 180.0° 237.0°
Hour Angle of the Sun 66.0° 66.0° -66.0°
Mean Anomaly of the Sun 343.22° 343.40° 343.58°
Obliquity 23.44° 23.44° 23.44°
Right Ascension of the Sun -94.47° -94.27° -94.07°
Sun Declination -23.37° -23.38° -23.38°
Moon 6:58 AM PST (12/17)   4:36 PM PST (12/17)
Length of Visible Light 9h 55m
Length of Day
8h 48m
Waning Crescent, 0% of the Moon is Illuminated
Dec 17
Waning Crescent
Dec 18
New
Dec 26
First Quarter
Jan 1
Full
Jan 8
Last Quarter