`spiral-structure` Related Article Results

edit Triangulum Galaxy (Messier 33 or NGC 598) is the third-largest galaxy in the Local Group after the Milky Way and Andromeda. It is generally accepted that the galaxy was first discovered in 1654 by Giovanni Battista Hodierna and was later cataloged by Charles Messier in the 18th century as M33. M33 is relatively easy to observe, making it a significant research target for both amateur and professional astronomers. General Features Location: Located in the Triangulum constellation Distance: A