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Astronomy

Dec. 15, 2019 Rise Solar Noon Set
Actual Time 7:32 AM MST 12:33 PM MST 5:34 PM MST
Civil Twilight 7:05 AM MST   6:01 PM MST
Nautical Twilight 6:34 AM MST   6:32 PM MST
Astronomical Twilight 6:04 AM MST   7:02 PM MST
Altitude -0.8° 34.2° -0.8°
Azimuth 117.3° 180.0° 242.6°
Hour Angle of the Sun 75.2° 75.2° -75.2°
Mean Anomaly of the Sun 340.69° 340.89° 341.10°
Obliquity 23.44° 23.44° 23.44°
Right Ascension of the Sun -97.28° -97.05° -96.82°
Sun Declination -23.27° -23.28° -23.29°
Moon 9:18 PM MST (12/15)   10:41 AM MST (12/15)
Length of Visible Light 10h 56m
Length of Day
10h 01m
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