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Astronomy

Aug. 20, 2017 Rise Solar Noon Set
Actual Time 7:42 AM -03 1:23 PM -03 7:04 PM -03
Civil Twilight 7:19 AM -03   7:28 PM -03
Nautical Twilight 6:52 AM -03   7:54 PM -03
Astronomical Twilight 6:26 AM -03   8:21 PM -03
Altitude -0.8° 53.4° -0.8°
Azimuth 76.9° 360.0° 283.0°
Hour Angle of the Sun 85.3° 85.3° -85.3°
Mean Anomaly of the Sun 225.73° 225.96° 226.19°
Obliquity 23.43° 23.43° 23.43°
Right Ascension of the Sun 149.80° 150.02° 150.24°
Sun Declination 12.30° 12.22° 12.14°
Moon 6:42 AM -03   6:07 PM -03
Length of Visible Light 12h 08m
Length of Day
11h 22m
Waning Crescent, 1% of the Moon is Illuminated
Aug 20
Waning Crescent
Aug 21
New
Aug 29
First Quarter
Sep 6
Full
Sep 13
Last Quarter