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Astronomy

Jan. 20, 2017 Rise Solar Noon Set
Actual Time 7:37 AM CST 12:54 PM CST 6:12 PM CST
Civil Twilight 7:12 AM CST   6:37 PM CST
Nautical Twilight 6:43 AM CST   7:06 PM CST
Astronomical Twilight 6:15 AM CST   7:34 PM CST
Altitude -0.8° 40.7° -0.8°
Azimuth 112.6° 180.0° 247.5°
Hour Angle of the Sun 79.2° 79.2° -79.3°
Mean Anomaly of the Sun 16.90° 17.12° 17.33°
Obliquity 23.43° 23.43° 23.43°
Right Ascension of the Sun -57.10° -56.87° -56.64°
Sun Declination -20.00° -19.95° -19.90°
Moon 1:19 AM CST   12:55 PM CST
Length of Visible Light 11h 24m
Length of Day
10h 34m
Last Quarter, 42% of the Moon is Illuminated
Jan 20
Last Quarter
Jan 27
New
Feb 3
First Quarter
Feb 10
Full
Feb 18
Last Quarter