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Hace 2 días · In 1897, another astronomer at Harvard, Antonia Maury, placed the Orion subtype of Secchi class I ahead of the remainder of Secchi class I, thus placing the modern type B ahead of the modern type A. She was the first to do so, although she did not use lettered spectral types, but rather a series of twenty-two types numbered from I–XXII.
15 de jul. de 2024 · Antonia Maury made a separate classification based upon the width of certain spectral lines. It was later discovered that this related to the luminosity and age of a star. Correlating these two...
Hace 3 días · Williamina Paton Stevens Fleming (15 May 1857 – 21 May 1911) was a Scottish astronomer. She was a single mother hired by the director of the Harvard College Observatory to help in the photographic classification of stellar spectra.
Hace 4 días · Antonia Maury (Powers) asserts one of the play’s major themes: “People hate and fear the creative mind.”
Hace 3 días · In one segment of this work Antonia Maury included divisions of the stars by the width of their spectral lines. Hertzsprung noted that stars described with narrow lines tended to have smaller proper motions than the others of the same spectral classification.
3 de jul. de 2024 · A large contribution is due to Antonia Maury and Annie Jump Cannon (1863 - 1941). We find the remnants of the early Draper classification in our modern classification with the following classes: O B A F G K M (see table 4).
16 de jul. de 2024 · A Quantum Life: My Unlikely Journey from the Street to the Stars. In this inspiring coming-of-age memoir, a world-renowned astrophysicist emerges from an impoverished childhood and crime-filled adolescence to ascend through the top ranks of research physics.
