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Astronomy

Aug. 20, 2017 Rise Solar Noon Set
Actual Time 6:13 AM -03 11:59 AM -03 5:45 PM -03
Civil Twilight 5:51 AM -03   6:07 PM -03
Nautical Twilight 5:25 AM -03   6:33 PM -03
Astronomical Twilight 4:59 AM -03   6:59 PM -03
Altitude -0.8° 58.1° -0.8°
Azimuth 77.2° 360.0° 282.6°
Hour Angle of the Sun 86.4° 86.5° -86.5°
Mean Anomaly of the Sun 225.67° 225.90° 226.14°
Obliquity 23.43° 23.43° 23.43°
Right Ascension of the Sun 149.74° 149.96° 150.18°
Sun Declination 12.32° 12.24° 12.16°
Moon 5:07 AM -03 (8/20)   4:45 PM -03 (8/20)
Length of Visible Light 12h 16m
Length of Day
11h 31m
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