Portrait of Henrietta Leavitt

Portrait of Henrietta Leavitt

H412/0160 Rights Managed

Request low-res file

530 pixels on longest edge, unwatermarked

Request/Download high-res file

Uncompressed file size: 51.1MB

Downloadable file size: 2.7MB

Price image Pricing

Please login to use the price calculator



Caption: Portrait of Henrietta Leavitt (1868-1921) US astronomer. Leavitt graduated from Radcliffe College in 1892, and joined the Harvard College Observatory in 1895. Her early work on the photographic magnitudes of stars led to her work on Cepheid variables. Using plates made of the Magellanic Clouds, Leavitt discovered about 2400 new variable stars. She also noticed that the brightness variation in the Cepheids was extremely regular, and that the brighter stars had longer periods. By 1912, she had established that the apparent magnitude varied as the logarithm of the period. This was the foundation of the method now used to measure extreme cosmic distances.

Release details: Model release not available. Property release not required.

Keywords: astronomer, h.s., henrietta s., leavitt, portraits, surname l

Licence fees: A licence fee will be charged for any media (low or high resolution) used in your project.