Henry Draper catalog

Alternative definitions (1), class: vernacular (0)
Term: Henry Draper catalog
Definition:

A catalog of stars in which every star is classified by its stellar spectrum. This system is named for the astronomer Henry Draper, but was cataloged by Annie J. Cannon (225,300 stars), and later extended by Margaret W. Mayall.

Created 2023.04.16
Last Modified 2023.04.16
Contributed by Ryan McGranaghan
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