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Astronomy

Dec. 13, 2017 Rise Solar Noon Set
Actual Time 6:54 AM HST 12:21 PM HST 5:47 PM HST
Civil Twilight 6:30 AM HST   6:11 PM HST
Nautical Twilight 6:03 AM HST   6:39 PM HST
Astronomical Twilight 5:35 AM HST   7:06 PM HST
Altitude -0.8° 45.8° -0.8°
Azimuth 114.6° 180.0° 245.4°
Hour Angle of the Sun 81.5° 81.5° -81.5°
Mean Anomaly of the Sun 339.33° 339.55° 339.77°
Obliquity 23.44° 23.44° 23.44°
Right Ascension of the Sun -98.84° -98.59° -98.34°
Sun Declination -23.19° -23.20° -23.21°
Moon 3:04 AM HST (12/13)   3:01 PM HST (12/13)
Length of Visible Light 11h 40m
Length of Day
10h 52m
Waning Crescent, 16% of the Moon is Illuminated
Dec 13
Waning Crescent
Dec 18
New
Dec 26
First Quarter
Jan 1
Full
Jan 8
Last Quarter