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Astronomy

Dec. 15, 2019 Rise Solar Noon Set
Actual Time 7:40 AM PST 11:49 AM PST 3:58 PM PST
Civil Twilight 7:03 AM PST   4:35 PM PST
Nautical Twilight 6:23 AM PST   5:15 PM PST
Astronomical Twilight 5:45 AM PST   5:54 PM PST
Altitude -0.8° 17.9° -0.8°
Azimuth 125.7° 180.0° 234.3°
Hour Angle of the Sun 62.1° 62.1° -62.1°
Mean Anomaly of the Sun 340.74° 340.91° 341.08°
Obliquity 23.44° 23.44° 23.44°
Right Ascension of the Sun -97.23° -97.04° -96.85°
Sun Declination -23.27° -23.28° -23.29°
Moon 7:50 PM PST (12/15)   10:45 AM PST (12/15)
Length of Visible Light 9h 31m
Length of Day
8h 17m
Waning Gibbous, 82% of the Moon is Illuminated
Dec 16
Waning Gibbous
Dec 18
Last Quarter
Dec 26
New
Jan 2
First Quarter
Jan 10
Full