penenrapan situs kamus online - ujian praktek
Galaxy From Wikipedia, the free encyclopedia Jump to navigation Jump to search This article is about the astronomical structure. For our galaxy, see Milky Way . For other uses, see Galaxy (disambiguation) . NGC 4414 , a typical spiral galaxy in the constellation Coma Berenices , is about 55,000 light-years in diameter and approximately 60 million light-years from Earth. A galaxy is a gravitationally bound system of stars , stellar remnants , interstellar gas , dust , and dark matter . [1] [2] The word is derived from the Greek galaxias ( γαλαξίας ), literally 'milky', a reference to the Milky Way galaxy that contains the Solar System . Galaxies range in size from dwarfs with just a few hundred million (10 8 ) stars to giants with one hundred trillion (10 14 ) stars, [3] each orbiting its galaxy'...