Messier
/meɪˈsjeɪ,〈法〉mɛsje/- Messier, Charles (1730-1817), French astronomer. He discovered a number of nebulae, galaxies, and star clusters, which he designated by M numbers. Almost all of these designations, such as M1 (the Crab Nebula), are still in use today.梅西叶, 查理（1730-1817, 法国天文学家; 发现了众多星云、星系和星团, 并用M数字命名, 几乎所有这些名称都沿用至今, 如M1, 即蟹状星云）。