What does HRD mean in Astronomy?
This page is about the meanings of the acronym/abbreviation/shorthand HRD in the Academic & Science field in general and in the Astronomy terminology in particular.
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What does HRD mean?
- Hertzsprung-Russell diagram(Noun)
- : a plot of the absolute magnitude of stars versus their colour (or surface temperature); shows the main sequence of stars plus the white dwarfs and red giants