early-type spiral
early-type spiral
[′ər·lē ¦tīp ′spī·rəl] (astronomy)
A spiral galaxy with a large nuclear bulge and tightly wound arms.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive
Most have an
early-type spiral system, called a lenticular galaxy, as the central showpiece.
Abstract: Lenicular (S0) galaxies form a morphological transition class between ellipticals and
early-type spirals in the Hubble (1936) classification system.
Low-surface-brightness galaxies dramatize this point as they are usually low-B/D systems (a late-type characteristic) that nevertheless have very low present-day star-formation rates (like
early-type spirals).
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