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Astronomy

Dec. 12, 2019 Rise Solar Noon Set
Actual Time 10:09 AM MST 1:07 PM MST 4:05 PM MST
Civil Twilight 9:11 AM MST   5:03 PM MST
Nautical Twilight 8:14 AM MST   6:00 PM MST
Astronomical Twilight 7:23 AM MST   6:51 PM MST
Altitude -0.8° 6.7° -0.8°
Azimuth 139.9° 180.0° 220.1°
Hour Angle of the Sun 44.5° 44.5° -44.4°
Mean Anomaly of the Sun 337.84° 337.96° 338.08°
Obliquity 23.44° 23.44° 23.44°
Right Ascension of the Sun -100.47° -100.34° -100.20°
Sun Declination -23.09° -23.10° -23.10°
Moon 4:42 PM MST   10:37 AM MST
Length of Visible Light 7h 51m
Length of Day
5h 55m
Full, 100% of the Moon is Illuminated
Dec 12
Full
Dec 18
Last Quarter
Dec 26
New
Jan 2
First Quarter
Jan 10
Full