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Astronomy

Aug. 17, 2017 Rise Solar Noon Set
Actual Time 5:48 AM PDT 12:56 PM PDT 8:04 PM PDT
Civil Twilight 5:13 AM PDT   8:38 PM PDT
Nautical Twilight 4:30 AM PDT   9:21 PM PDT
Astronomical Twilight 3:40 AM PDT   10:11 PM PDT
Altitude -0.8° 54.2° -0.8°
Azimuth 68.5° 180.0° 291.2°
Hour Angle of the Sun 107.1° 107.0° -106.8°
Mean Anomaly of the Sun 222.86° 223.15° 223.44°
Obliquity 23.43° 23.43° 23.43°
Right Ascension of the Sun 147.09° 147.37° 147.65°
Sun Declination 13.25° 13.16° 13.06°
Moon 1:17 AM PDT   5:00 PM PDT
Length of Visible Light 15h 24m
Length of Day
14h 15m
Waning Crescent, 25% of the Moon is Illuminated
Aug 17
Waning Crescent
Aug 21
New
Aug 29
First Quarter
Sep 6
Full
Sep 13
Last Quarter