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Astronomy

Dec. 15, 2019 Rise Solar Noon Set
Actual Time 7:04 AM MST 11:50 AM MST 4:35 PM MST
Civil Twilight 6:34 AM MST   5:05 PM MST
Nautical Twilight 6:01 AM MST   5:38 PM MST
Astronomical Twilight 5:29 AM MST   6:10 PM MST
Altitude -0.8° 28.5° -0.8°
Azimuth 119.4° 180.0° 240.5°
Hour Angle of the Sun 71.4° 71.4° -71.4°
Mean Anomaly of the Sun 340.67° 340.86° 341.06°
Obliquity 23.44° 23.44° 23.44°
Right Ascension of the Sun -97.30° -97.08° -96.86°
Sun Declination -23.27° -23.28° -23.29°
Moon 8:20 PM MST   10:10 AM MST
Length of Visible Light 10h 30m
Length of Day
9h 31m
Waning Gibbous, 86% of the Moon is Illuminated
Dec 15
Waning Gibbous
Dec 18
Last Quarter
Dec 26
New
Jan 2
First Quarter
Jan 10
Full