Show C. C Met J with the rapid growth of K astronomy lie Its terms hate bue often changed their meanings Vr Dr Harlow Shapley director of the observatory recently defined some of them II as follows follow gal al as axy refers refer to a star system of the spiral Mal nebula order of sloe size greater rater than star tor clusters tike like the Great Nebula Neb Neb- ula In 10 Andromeda super are systems of two t or more galaxies ap patently around a common center or otherwise acting l as a. a trait the Is II the entire system of galaxies It differs from the universe In that the latter presumably Iso also con conn tales talo radiations la laws of nature con con- DI Direst lt |