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Astronomy

Sep. 20, 2017 Rise Solar Noon Set
Actual Time 6:34 AM PDT 12:40 PM PDT 6:46 PM PDT
Civil Twilight 6:09 AM PDT   7:10 PM PDT
Nautical Twilight 5:40 AM PDT   7:39 PM PDT
Astronomical Twilight 5:11 AM PDT   8:09 PM PDT
Altitude -0.8° 57.4° -0.8°
Azimuth 88.4° 180.0° 271.4°
Hour Angle of the Sun 91.6° 91.5° -91.5°
Mean Anomaly of the Sun 256.40° 256.65° 256.90°
Obliquity 23.43° 23.43° 23.43°
Right Ascension of the Sun 177.96° 178.19° 178.42°
Sun Declination 0.88° 0.78° 0.68°
Moon 6:56 AM PDT (9/20)   7:24 PM PDT (9/20)
Length of Visible Light 13h 01m
Length of Day
12h 11m
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