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Astronomy

Jan. 21, 2017 Rise Solar Noon Set
Actual Time 6:20 AM BRST 12:47 PM BRST 7:14 PM BRST
Civil Twilight 5:57 AM BRST   7:37 PM BRST
Nautical Twilight 5:29 AM BRST   8:04 PM BRST
Astronomical Twilight 5:02 AM BRST   8:32 PM BRST
Altitude -0.8° 85.9° -0.8°
Azimuth 110.9° 180.0° 249.3°
Hour Angle of the Sun 96.7° 96.7° -96.7°
Mean Anomaly of the Sun 17.67° 17.93° 18.20°
Obliquity 23.43° 23.43° 23.43°
Right Ascension of the Sun -56.28° -55.99° -55.71°
Sun Declination -19.83° -19.76° -19.70°
Moon 1:13 AM BRST   2:04 PM BRST
Length of Visible Light 13h 40m
Length of Day
12h 53m
Last Quarter, 38% of the Moon is Illuminated
Jan 21
Last Quarter
Jan 27
New
Feb 3
First Quarter
Feb 10
Full
Feb 18
Last Quarter