Ejnar Hertzsprung

Danish chemist and astronomer (1873–1967)

Ejnar Hertzsprung (Danish: [ˈɑjnɐ ˈhɛɐ̯tsˌpʁɔŋ]; 8 October 1873 – 21 October 1967) was a Danish chemist and astronomer. He is best remembered for his role in developing the Hertzsprung–Russell diagram of stars.

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