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Astronomy

Dec. 18, 2017 Rise Solar Noon Set
Actual Time 6:20 AM -03 1:47 PM -03 9:13 PM -03
Civil Twilight 5:48 AM -03   9:45 PM -03
Nautical Twilight 5:08 AM -03   10:26 PM -03
Astronomical Twilight 4:22 AM -03   11:12 PM -03
Altitude -0.8° 74.6° -0.8°
Azimuth 121.4° 360.0° 238.6°
Hour Angle of the Sun 111.6° 111.6° -111.6°
Mean Anomaly of the Sun 343.94° 344.25° 344.55°
Obliquity 23.44° 23.44° 23.44°
Right Ascension of the Sun -93.66° -93.32° -92.97°
Sun Declination -23.39° -23.40° -23.41°
Moon 6:47 AM -03   9:29 PM -03
Length of Visible Light 15h 56m
Length of Day
14h 52m
New Moon, 0% of the Moon is Illuminated
Dec 18
New Moon
Dec 26
First Quarter
Jan 1
Full
Jan 8
Last Quarter
Jan 16
New