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Astronomy

Dec. 18, 2017 Rise Solar Noon Set
Actual Time 7:59 AM PST 12:10 PM PST 4:21 PM PST
Civil Twilight 7:23 AM PST   4:58 PM PST
Nautical Twilight 6:43 AM PST   5:38 PM PST
Astronomical Twilight 6:05 AM PST   6:16 PM PST
Altitude -0.8° 18.6° -0.8°
Azimuth 125.3° 180.0° 234.7°
Hour Angle of the Sun 62.8° 62.8° -62.8°
Mean Anomaly of the Sun 344.22° 344.39° 344.56°
Obliquity 23.44° 23.44° 23.44°
Right Ascension of the Sun -93.35° -93.16° -92.97°
Sun Declination -23.40° -23.40° -23.41°
Moon 8:04 AM PST   5:10 PM PST
Length of Visible Light 9h 35m
Length of Day
8h 22m
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