Milwaukee Astronomical Society

 

M33 - NGC 598 - The Triangulum Galaxy

 
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Messier 33 (M33), commonly referred to as the Triangulum Galaxy is a Spiral Galaxy located in the constellation Triangulum. M33 is the third largest member of our Local Group of galaxies. The Triangulum galaxy also contains one of the largest H II regions known, measuring 1,500 light years in diameter. This galaxy is located about 3 million light years from earth and is approximately 60,000 light years in diameter. It was officially discovered by Charles Messier in 1764.

Location Data
Constellation: Triangulum
Right ascension: 1h 33.9m
Declination: 30° 40′
Distance:  3,000,000 ly
Size:  60,000 ly

Observation Data
Apparent magnitude: 5.7
Apparent size: 73' X 45' arcmins


The images With Blue Borders were taken using equipment provided by the MAS Observatory
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