100000 ly 31000 pc SBc. Many galaxies in this universe are spiral spherical and other shapes but the size of galaxy makes its shape if the galaxy is very big there would be a great force of gravitation making it either spiral or spherical but many galaxies in this universe are not too much big to have such a great force of gravitation which would bind. Types Of Galaxies Pictures Facts And Information The home galaxy of humankind. . The huge neutral hydrogen halo of this galaxy makes it large. Galaxies can be grouped into three categories based on size. The smallest are dwarf elliptical galaxies which can be less than 10 percent of. Galaxies come in many different shapes and sizes ranging from dwarf galaxies with as few as 10 7 stars to giants with 10 12 stars. All the stars in the night sky including our Sun are just some of the residents of this galaxy along with millions of other stars too faint to be seen. M101 the Pinw...
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