Catalogs
preferred label: Catalogues
type: Concept
narrower: Henry Draper catalog

Stellar classification
type: Concept
narrower: Henry Draper catalog

Henry Draper catalog
type: Concept
preferred label: Henry Draper catalogue
alternative label: HD catalog
alternative label: Harvard classification
alternative label: Henry Draper Catalogue
modified: 2020-11-09T16:34:06.948Z
modified: 2022-01-03T15:50:14.122Z
definition: A catalog of stars in which every star is classified by its stellar spectrum. Though named for the astronomer Henry Draper, it was cataloged by Annie J. Cannon (225,300 stars), and later extended by Margaret W. Mayall.
contributor: AAS Frey.Katie
broader: Catalogs
broader: Stellar classification