Disc galaxies are galaxies which have discs, a flattened circular volume of stars. These galaxies may, or may not include a central non-disc-like region (central bulge).
Disc galaxy types include
- spiral galaxies
- barless spiral galaxies (type S, SA)
- barred spiral galaxies (type SB)
- intermediate barred spiral galaxies (type SAB)
- lenticular galaxies (type E8, S0, SA0, SB0, SAB0)
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Famous quotes containing the words disc and/or galaxy:
“Soundless as dots—on a Disc of Snow—”
—Emily Dickinson (1830–1886)
“for it is not so much to know the self
as to know it as it is known
by galaxy and cedar cone,
as if birth had never found it
and death could never end it:”
—Archie Randolph Ammons (b. 1926)