# Hertzsprung-Russell diagram

> English word · Noun

## Definitions
1. A graphic representation of the absolute magnitude of stars against their color (or surface temperature), which shows the main sequence of stars plus the white dwarfs and red giants.

## Etymology
After astronomers Ejnar Hertzsprung and Henry Norris Russell.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/hertzsprung-russell-diagram