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Astronomy

Dec. 12, 2017 Rise Solar Noon Set
Actual Time 6:50 AM JST 11:45 AM JST 4:40 PM JST
Civil Twilight 6:22 AM JST   5:08 PM JST
Nautical Twilight 5:51 AM JST   5:40 PM JST
Astronomical Twilight 5:20 AM JST   6:11 PM JST
Altitude -0.8° 31.8° -0.8°
Azimuth 118.0° 180.0° 242.0°
Hour Angle of the Sun 73.7° 73.7° -73.7°
Mean Anomaly of the Sun 337.56° 337.76° 337.96°
Obliquity 23.44° 23.44° 23.44°
Right Ascension of the Sun -100.82° -100.60° -100.37°
Sun Declination -23.06° -23.08° -23.09°
Moon 12:54 AM JST (12/12)   1:16 PM JST (12/12)
Length of Visible Light 10h 45m
Length of Day
9h 49m
Waning Crescent, 34% of the Moon is Illuminated
Dec 11
Waning Crescent
Dec 18
New
Dec 26
First Quarter
Jan 1
Full
Jan 8
Last Quarter