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Astronomy

Dec. 15, 2017 Rise Solar Noon Set
Actual Time 7:44 AM PST 12:05 PM PST 4:27 PM PST
Civil Twilight 7:10 AM PST   5:01 PM PST
Nautical Twilight 6:32 AM PST   5:39 PM PST
Astronomical Twilight 5:56 AM PST   6:15 PM PST
Altitude -0.8° 21.1° -0.8°
Azimuth 123.4° 180.0° 236.6°
Hour Angle of the Sun 65.4° 65.4° -65.4°
Mean Anomaly of the Sun 341.25° 341.43° 341.61°
Obliquity 23.44° 23.44° 23.44°
Right Ascension of the Sun -96.69° -96.49° -96.29°
Sun Declination -23.29° -23.30° -23.31°
Moon 5:03 AM PST   3:19 PM PST
Length of Visible Light 9h 51m
Length of Day
8h 43m
Waning Crescent, 7% of the Moon is Illuminated
Dec 15
Waning Crescent
Dec 18
New
Dec 26
First Quarter
Jan 1
Full
Jan 8
Last Quarter