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Astronomy

Dec. 15, 2017 Rise Solar Noon Set
Actual Time 7:30 AM CST 12:39 PM CST 5:47 PM CST
Civil Twilight 7:04 AM CST   6:13 PM CST
Nautical Twilight 6:34 AM CST   6:43 PM CST
Astronomical Twilight 6:05 AM CST   7:12 PM CST
Altitude -0.8° 37.3° -0.8°
Azimuth 116.5° 180.0° 243.5°
Hour Angle of the Sun 77.1° 77.0° -77.0°
Mean Anomaly of the Sun 341.16° 341.37° 341.58°
Obliquity 23.44° 23.44° 23.44°
Right Ascension of the Sun -96.79° -96.55° -96.32°
Sun Declination -23.29° -23.30° -23.31°
Moon 5:05 AM CST   4:19 PM CST
Length of Visible Light 11h 08m
Length of Day
10h 16m
Waning Crescent, 7% of the Moon is Illuminated
Dec 15
Waning Crescent
Dec 18
New
Dec 26
First Quarter
Jan 1
Full
Jan 8
Last Quarter