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Astronomy

Dec. 12, 2017 Rise Solar Noon Set
Actual Time 7:11 AM JST 12:09 PM JST 5:08 PM JST
Civil Twilight 6:43 AM JST   5:35 PM JST
Nautical Twilight 6:12 AM JST   6:06 PM JST
Astronomical Twilight 5:42 AM JST   6:37 PM JST
Altitude -0.8° 33.1° -0.8°
Azimuth 117.5° 180.0° 242.5°
Hour Angle of the Sun 74.6° 74.6° -74.6°
Mean Anomaly of the Sun 337.57° 337.78° 337.98°
Obliquity 23.44° 23.44° 23.44°
Right Ascension of the Sun -100.81° -100.58° -100.35°
Sun Declination -23.06° -23.08° -23.09°
Moon 1:19 AM JST (12/12)   1:41 PM JST (12/12)
Length of Visible Light 10h 51m
Length of Day
9h 56m
Waning Crescent, 36% of the Moon is Illuminated
Dec 11
Waning Crescent
Dec 18
New
Dec 26
First Quarter
Jan 1
Full
Jan 8
Last Quarter