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Astronomy

Dec. 16, 2017 Rise Solar Noon Set
Actual Time 7:34 AM PST 11:45 AM PST 3:55 PM PST
Civil Twilight 6:57 AM PST   4:32 PM PST
Nautical Twilight 6:18 AM PST   5:12 PM PST
Astronomical Twilight 5:39 AM PST   5:50 PM PST
Altitude -0.8° 18.4° -0.8°
Azimuth 125.4° 180.0° 234.6°
Hour Angle of the Sun 62.6° 62.6° -62.6°
Mean Anomaly of the Sun 342.23° 342.40° 342.57°
Obliquity 23.44° 23.44° 23.44°
Right Ascension of the Sun -95.59° -95.40° -95.20°
Sun Declination -23.34° -23.34° -23.35°
Moon 5:48 AM PST   3:23 PM PST
Length of Visible Light 9h 34m
Length of Day
8h 20m
Waning Crescent, 2% of the Moon is Illuminated
Dec 16
Waning Crescent
Dec 18
New
Dec 26
First Quarter
Jan 1
Full
Jan 8
Last Quarter