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Astronomy

Dec. 15, 2017 Rise Solar Noon Set
Actual Time 6:36 AM JST 11:35 AM JST 4:35 PM JST
Civil Twilight 6:09 AM JST   5:02 PM JST
Nautical Twilight 5:38 AM JST   5:33 PM JST
Astronomical Twilight 5:07 AM JST   6:03 PM JST
Altitude -0.8° 33.6° -0.8°
Azimuth 117.5° 180.0° 242.5°
Hour Angle of the Sun 74.8° 74.8° -74.8°
Mean Anomaly of the Sun 340.50° 340.71° 340.91°
Obliquity 23.44° 23.44° 23.44°
Right Ascension of the Sun -97.52° -97.29° -97.06°
Sun Declination -23.25° -23.27° -23.28°
Moon 3:31 AM JST   2:47 PM JST
Length of Visible Light 10h 53m
Length of Day
9h 58m
Waning Crescent, 9% of the Moon is Illuminated
Dec 14
Waning Crescent
Dec 18
New
Dec 26
First Quarter
Jan 1
Full
Jan 8
Last Quarter