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Astronomy

Dec. 18, 2017 Rise Solar Noon Set
Actual Time 7:34 AM PST 12:04 PM PST 4:34 PM PST
Civil Twilight 7:01 AM PST   5:06 PM PST
Nautical Twilight 6:25 AM PST   5:42 PM PST
Astronomical Twilight 5:51 AM PST   6:17 PM PST
Altitude -0.8° 23.5° -0.8°
Azimuth 122.0° 180.0° 238.0°
Hour Angle of the Sun 67.5° 67.5° -67.5°
Mean Anomaly of the Sun 344.20° 344.38° 344.57°
Obliquity 23.44° 23.44° 23.44°
Right Ascension of the Sun -93.37° -93.16° -92.96°
Sun Declination -23.40° -23.40° -23.41°
Moon 7:41 AM PST   5:20 PM PST
Length of Visible Light 10h 05m
Length of Day
9h 00m
New Moon, 0% of the Moon is Illuminated
Dec 18
New Moon
Dec 26
First Quarter
Jan 1
Full
Jan 8
Last Quarter
Jan 16
New