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    Elliptical galaxy - Wikipedia

    • An elliptical galaxy is a type of galaxy with an approximately ellipsoidal shape and a smooth, nearly featureless image. They are one of the three main classes of galaxy described by Edwin Hubble in his Hubble sequence and 1936 work The Realm of the Nebulae, along with spiral and lenticular galaxies. Elliptical (E) galaxies are, together with lenticular galaxies (S0) wit… 展开

    Examples

    3C 244.1
    M49 (NGC 4472)
    M59 (NGC 4621)
    M60 (NGC 4649)
    M87 (NGC 4486), whose supermassive black hole was the first black hole to be imaged by the Event Horizon Telescope. … 展开

    General characteristics

    Elliptical galaxies are characterized by several properties that make them distinct from other classes of galaxy. They are spherical or ovoid masses of stars, starved of star-making gases. Furthermore, there is very little … 展开