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Leavitt working at her desk in the Harvard College Observatory. Margaret Harwood - American Institute of Physics, Emilio Segrè Visual Archives https://www.aip.org/history-programs/niels-bohr-library/photos/leavitt-henrietta-swan-b1 https://www.space.com/34708-henrietta-swan-leavitt-biography.html Henrietta Swan Leavitt discovered a relationship between the period of a star's brightness cycle to its absolute magnitude. The discovery made it possible to calculate their distance from Earth; (Image credit: Harvard-Smithsonian Center for Astrophysics )

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  1. Project Gutenberg (gutenberg_org@mastodon.social)'s status on Thursday, 12-Dec-2024 12:00:15 UTC Project Gutenberg Project Gutenberg

    "Since the [Cepheid] variables are probably at nearly the same distance from the Earth, their periods are apparently associated with their actual emission of light, as determined by their mass, density, and surface brightness."

    Periods of 25 Variable Stars in the Small Magellanic Cloud (1912)

    ~Henrietta Swan Leavitt (July 4, 1868 – December 12, 1921)

    #science #astronomy #womeninStem

    In conversation about 12 days ago from mastodon.social permalink
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Chirp! is a social network. It runs on GNU social, version 2.0.1-beta0, available under the GNU Affero General Public License.

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