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Astronomy

Dec. 17, 2017 Rise Solar Noon Set
Actual Time 6:48 AM PST 11:45 AM PST 4:41 PM PST
Civil Twilight 6:20 AM PST   5:09 PM PST
Nautical Twilight 5:49 AM PST   5:40 PM PST
Astronomical Twilight 5:18 AM PST   6:11 PM PST
Altitude -0.8° 32.6° -0.8°
Azimuth 118.0° 180.0° 242.0°
Hour Angle of the Sun 74.2° 74.1° -74.1°
Mean Anomaly of the Sun 343.18° 343.39° 343.59°
Obliquity 23.44° 23.44° 23.44°
Right Ascension of the Sun -94.52° -94.29° -94.06°
Sun Declination -23.37° -23.38° -23.38°
Moon 6:07 AM PST (12/17)   4:39 PM PST (12/17)
Length of Visible Light 10h 48m
Length of Day
9h 53m
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