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Astronomy

Dec. 13, 2017 Rise Solar Noon Set
Actual Time 5:09 AM SAST 12:01 PM SAST 6:53 PM SAST
Civil Twilight 4:43 AM SAST   7:19 PM SAST
Nautical Twilight 4:12 AM SAST   7:50 PM SAST
Astronomical Twilight 3:39 AM SAST   8:23 PM SAST
Altitude -0.8° 87.4° -0.8°
Azimuth 116.3° 360.0° 243.6°
Hour Angle of the Sun 102.9° 102.9° -102.9°
Mean Anomaly of the Sun 338.76° 339.04° 339.33°
Obliquity 23.44° 23.44° 23.44°
Right Ascension of the Sun -99.48° -99.16° -98.85°
Sun Declination -23.15° -23.17° -23.19°
Moon 2:02 AM SAST   2:46 PM SAST
Length of Visible Light 14h 35m
Length of Day
13h 43m
Waning Crescent, 22% of the Moon is Illuminated
Dec 13
Waning Crescent
Dec 18
New
Dec 26
First Quarter
Jan 1
Full
Jan 8
Last Quarter