Nebulas

Initially frustrated by his findings of fuzzy objects that were not comets but rather "nebulosities" fixed in space, he compiled a list of these objects. This list of nebulas includes many star clusters and distant galaxies.
 Charles Messier France 1771 Nebulas

Initially frustrated by his findings of fuzzy objects that were not comets but rather "nebulosities" fixed in space, he compiled a list of these objects. This list of nebulas includes many star clusters and distant galaxies.