early-type galaxy A now generally disused term that stems from the idea that type S0 (lenticular galaxies) and SB0 (barred lenticular) galaxies might have evolved from E0 and other ellipticals and might also be evolutionary precursors to other spiral and barred spiral galaxies. Related entry galaxy classification Related category GALAXIES Also on this site: Encyclopedia of Alternative Energy & Sustainable Living Encyclopedia of History Transport Concepts & Designs (partner site) |