Hertzsprung-Russell diagram
(Internet slang, humorous) Alternative spelling of Fem&M's.
(astronomy) A graphic representation of the absolute magnitude of stars against their color (or surface temperature), which shows the main sequence of stars plus the white dwarfs and red giants.
A surname. / An unincorporated community in Monongalia County, West Virginia, United States.
A colony of hydrozoan polyps of the species Porpita porpita / (UK, finance, historical) An unauthorized clerk in the stock exchange.
データをプロットすると、星の絶対等級と色(表面温度)を示す図から、明瞭な主系列といくつかの赤色巨星がはっきりと見えた。
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