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Astronomy

Sep. 20, 2017 Rise Solar Noon Set
Actual Time 6:44 AM PDT 12:53 PM PDT 7:00 PM PDT
Civil Twilight 6:14 AM PDT   7:31 PM PDT
Nautical Twilight 5:38 AM PDT   8:06 PM PDT
Astronomical Twilight 5:00 AM PDT   8:43 PM PDT
Altitude -0.8° 43.8° -0.8°
Azimuth 87.8° 180.0° 271.9°
Hour Angle of the Sun 92.2° 92.1° -92.0°
Mean Anomaly of the Sun 256.41° 256.66° 256.91°
Obliquity 23.43° 23.43° 23.43°
Right Ascension of the Sun 177.97° 178.20° 178.43°
Sun Declination 0.88° 0.78° 0.68°
Moon 7:05 AM PDT (9/20)   7:36 PM PDT (9/20)
Length of Visible Light 13h 17m
Length of Day
12h 16m
New Moon, 1% of the Moon is Illuminated
Sep 21
New Moon
Sep 27
First Quarter
Oct 5
Full
Oct 12
Last Quarter
Oct 19
New