Concept information
Preferred term
Spiral galaxies
Definition
- A galaxy with a prominent nuclear bulge and luminous spiral arms of gas, dust, and young stars that wind out from the nucleus. Masses span the range from 10^10 to 10^12 solar masses. (en)
Broader concept
- Disk galaxies (en)
Narrower concepts
- Andromeda Galaxy (en)
- Barred spiral galaxies (en)
- Milky Way Galaxy (en)
- Triangulum Galaxy (en)
- Unbarred spiral galaxies (en)
Entry terms
- S galaxies (en)
Editorial note
URI
http://astrothesaurus.org/uat/1560
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