Hubble
/ˈhʌbl/- Hubble, Edwin Powell (1889-1953), American astronomer. He studied galaxies and devised a classification scheme for them. In 1929 he proposed what is now known as Hubble's law with its constant of proportionality (Hubble's constant).哈勃, 埃德温·鲍威尔（1889-1953, 美国天文学家, 研究星系, 设计星系分类方法, 1929年提出现在人们所知的哈勃定律及其比例常数, 即哈勃常数）。