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Astronomy

Dec. 13, 2017 Rise Solar Noon Set
Actual Time 5:53 AM +08 11:37 AM +08 5:22 PM +08
Civil Twilight 5:30 AM +08   5:45 PM +08
Nautical Twilight 5:04 AM +08   6:11 PM +08
Astronomical Twilight 4:38 AM +08   6:37 PM +08
Altitude -0.8° 55.6° -0.8°
Azimuth 113.4° 180.0° 246.5°
Hour Angle of the Sun 86.0° 86.0° -86.0°
Mean Anomaly of the Sun 338.55° 338.78° 339.02°
Obliquity 23.44° 23.44° 23.44°
Right Ascension of the Sun -99.72° -99.46° -99.19°
Sun Declination -23.13° -23.15° -23.17°
Moon 1:39 AM +08   1:53 PM +08
Length of Visible Light 12h 14m
Length of Day
11h 28m
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