These objects are those which occur outside our own Milky Way Galaxy. They include various types of galaxies, quasars, and some pulsars known to exist outside our galaxy in other galaxies. There are three main types of galaxies, spiral, elliptical and irregular. Spiral galaxies are also subdivided into normal and barred spirals, each with it’s own nomenclature. This is largely based upon number of spiral arms and shape of the nucleus. The classification for these Deep Space Objects is similar to that of the Intergalactic objects, except only the brightest ones are visible in binoculars or small telescopes.