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Astronomy

Dec. 13, 2017 Rise Solar Noon Set
Actual Time 7:17 AM +12 12:47 PM +12 6:17 PM +12
Civil Twilight 6:54 AM +12   6:40 PM +12
Nautical Twilight 6:26 AM +12   7:08 PM +12
Astronomical Twilight 5:59 AM +12   7:35 PM +12
Altitude -0.8° 47.6° -0.8°
Azimuth 114.3° 180.0° 245.7°
Hour Angle of the Sun 82.4° 82.4° -82.4°
Mean Anomaly of the Sun 338.44° 338.66° 338.89°
Obliquity 23.44° 23.44° 23.44°
Right Ascension of the Sun -99.84° -99.59° -99.33°
Sun Declination -23.13° -23.14° -23.16°
Moon 2:44 AM +12   2:54 PM +12
Length of Visible Light 11h 46m
Length of Day
10h 59m
Waning Crescent, 20% of the Moon is Illuminated
Dec 13
Waning Crescent
Dec 18
New
Dec 26
First Quarter
Jan 1
Full
Jan 8
Last Quarter