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Astronomy

Dec. 15, 2019 Rise Solar Noon Set
Actual Time 7:07 AM MST 12:08 PM MST 5:08 PM MST
Civil Twilight 6:40 AM MST   5:35 PM MST
Nautical Twilight 6:09 AM MST   6:06 PM MST
Astronomical Twilight 5:39 AM MST   6:36 PM MST
Altitude -0.8° 33.9° -0.8°
Azimuth 117.4° 180.0° 242.6°
Hour Angle of the Sun 75.0° 75.0° -75.0°
Mean Anomaly of the Sun 340.67° 340.88° 341.08°
Obliquity 23.44° 23.44° 23.44°
Right Ascension of the Sun -97.30° -97.07° -96.84°
Sun Declination -23.27° -23.28° -23.29°
Moon 8:51 PM MST (12/15)   10:15 AM MST (12/15)
Length of Visible Light 10h 55m
Length of Day
10h 00m
Waning Gibbous, 83% of the Moon is Illuminated
Dec 15
Waning Gibbous
Dec 18
Last Quarter
Dec 26
New
Jan 2
First Quarter
Jan 10
Full