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Astronomy

Sep. 21, 2017 Rise Solar Noon Set
Actual Time 6:50 AM PDT 12:57 PM PDT 7:03 PM PDT
Civil Twilight 6:20 AM PDT   7:34 PM PDT
Nautical Twilight 5:44 AM PDT   8:10 PM PDT
Astronomical Twilight 5:06 AM PDT   8:47 PM PDT
Altitude -0.8° 43.2° -0.8°
Azimuth 88.4° 180.0° 271.3°
Hour Angle of the Sun 91.8° 91.6° -91.5°
Mean Anomaly of the Sun 257.40° 257.65° 257.90°
Obliquity 23.43° 23.43° 23.43°
Right Ascension of the Sun 178.87° 179.10° 179.33°
Sun Declination 0.49° 0.39° 0.29°
Moon 8:18 AM PDT (9/21)   8:08 PM PDT (9/21)
Length of Visible Light 13h 14m
Length of Day
12h 13m
Waxing Crescent, 5% of the Moon is Illuminated
Sep 22
Waxing Crescent
Sep 27
First Quarter
Oct 5
Full
Oct 12
Last Quarter
Oct 19
New