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Astronomy

Dec. 17, 2017 Rise Solar Noon Set
Actual Time 5:35 AM -03 12:55 PM -03 8:16 PM -03
Civil Twilight 5:04 AM -03   8:47 PM -03
Nautical Twilight 4:26 AM -03   9:25 PM -03
Astronomical Twilight 3:43 AM -03   10:08 PM -03
Altitude -0.8° 76.5° -0.8°
Azimuth 120.4° 360.0° 239.6°
Hour Angle of the Sun 110.1° 110.1° -110.1°
Mean Anomaly of the Sun 342.93° 343.23° 343.53°
Obliquity 23.44° 23.44° 23.44°
Right Ascension of the Sun -94.80° -94.46° -94.13°
Sun Declination -23.36° -23.37° -23.38°
Moon 5:17 AM -03   7:41 PM -03
Length of Visible Light 15h 42m
Length of Day
14h 40m
Waning Crescent, 1% of the Moon is Illuminated
Dec 16
Waning Crescent
Dec 18
New
Dec 26
First Quarter
Jan 1
Full
Jan 8
Last Quarter