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Astronomy

Dec. 18, 2017 Rise Solar Noon Set
Actual Time 7:41 AM PST 11:58 AM PST 4:15 PM PST
Civil Twilight 7:06 AM PST   4:50 PM PST
Nautical Twilight 6:27 AM PST   5:29 PM PST
Astronomical Twilight 5:51 AM PST   6:06 PM PST
Altitude -0.8° 20.0° -0.8°
Azimuth 124.3° 180.0° 235.7°
Hour Angle of the Sun 64.2° 64.2° -64.2°
Mean Anomaly of the Sun 344.20° 344.38° 344.56°
Obliquity 23.44° 23.44° 23.44°
Right Ascension of the Sun -93.37° -93.17° -92.97°
Sun Declination -23.40° -23.40° -23.41°
Moon 7:46 AM PST   5:03 PM PST
Length of Visible Light 9h 44m
Length of Day
8h 33m
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