Williamina Fleming

Common card · No. 472026

Williamina Paton Stevens Fleming (15 May 1857 – 21 May 1911) was an American astronomer, born in Scotland At the Harvard College Observatory, she contributed to the photographic classification of stellar spectra, helping to develop a common designation system for stars that is used to this day. Fleming cataloged more than ten thousand stars, 59 gaseous nebulae, over 310 variable stars, and 10 novae, among other astronomical phenomena. She is credited with the discovery of the Horsehead Nebula in 1888, and she was a vocal supporter of women's representation in her field.

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