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Astronomy

Dec. 15, 2017 Rise Solar Noon Set
Actual Time 6:13 AM -03 12:34 PM -03 6:56 PM -03
Civil Twilight 5:50 AM -03   7:19 PM -03
Nautical Twilight 5:23 AM -03   7:46 PM -03
Astronomical Twilight 4:55 AM -03   8:14 PM -03
Altitude -0.8° 77.0° -0.8°
Azimuth 113.8° 180.0° 246.1°
Hour Angle of the Sun 95.4° 95.4° -95.4°
Mean Anomaly of the Sun 340.98° 341.24° 341.50°
Obliquity 23.44° 23.44° 23.44°
Right Ascension of the Sun -96.99° -96.70° -96.40°
Sun Declination -23.28° -23.29° -23.30°
Moon 4:13 AM -03   4:57 PM -03
Length of Visible Light 13h 29m
Length of Day
12h 43m
Waning Crescent, 5% of the Moon is Illuminated
Dec 15
Waning Crescent
Dec 18
New
Dec 26
First Quarter
Jan 1
Full
Jan 8
Last Quarter