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Astronomy

Dec. 13, 2019 Rise Solar Noon Set
Actual Time 7:24 AM MST 12:23 PM MST 5:22 PM MST
Civil Twilight 6:57 AM MST   5:49 PM MST
Nautical Twilight 6:26 AM MST   6:21 PM MST
Astronomical Twilight 5:56 AM MST   6:51 PM MST
Altitude -0.8° 33.3° -0.8°
Azimuth 117.5° 180.0° 242.4°
Hour Angle of the Sun 74.7° 74.7° -74.6°
Mean Anomaly of the Sun 338.71° 338.92° 339.12°
Obliquity 23.44° 23.44° 23.44°
Right Ascension of the Sun -99.50° -99.27° -99.04°
Sun Declination -23.15° -23.16° -23.18°
Moon 6:59 PM MST   8:46 AM MST
Length of Visible Light 10h 52m
Length of Day
9h 57m
Full, 98% of the Moon is Illuminated
Dec 13
Full
Dec 18
Last Quarter
Dec 26
New
Jan 2
First Quarter
Jan 10
Full