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Astronomy

Dec. 13, 2017 Rise Solar Noon Set
Actual Time 6:27 AM -03 1:37 PM -03 8:46 PM -03
Civil Twilight 5:58 AM -03   9:15 PM -03
Nautical Twilight 5:23 AM -03   9:50 PM -03
Astronomical Twilight 4:45 AM -03   10:29 PM -03
Altitude -0.8° 80.0° -0.8°
Azimuth 118.7° 360.0° 241.3°
Hour Angle of the Sun 107.4° 107.4° -107.4°
Mean Anomaly of the Sun 339.02° 339.31° 339.61°
Obliquity 23.44° 23.44° 23.44°
Right Ascension of the Sun -99.19° -98.86° -98.53°
Sun Declination -23.17° -23.19° -23.20°
Moon 3:44 AM -03   4:41 PM -03
Length of Visible Light 15h 17m
Length of Day
14h 19m
Waning Crescent, 21% of the Moon is Illuminated
Dec 13
Waning Crescent
Dec 18
New
Dec 26
First Quarter
Jan 1
Full
Jan 8
Last Quarter