°A galaxy having a smooth, featurelesslight-profile. It is one of the three main classes of galaxies originally described by Edwin Hubble in his 1936 work "The Realm of the Nebulae".
°A galaxy having a smooth, featurelesslight-profile. It is one of the three main classes of galaxies originally described by Edwin Hubble in his 1936 work "The Realm of the Nebulae".