| 单词 | variable star |
| 释义 | variable star (once / 53725 pages) n WORD FAMILY variable star: variable stars USAGE EXAMPLESEdwin Hubble leveraged Leavitt’s law on the behavior of variable stars to gauge distances to certain nebulae. New York Times(Dec 26, 2016) Pickering was especially interested in variable stars, whose light would brighten and fade over a specific period. Nature(Nov 22, 2016) Astronomers have found a dozen very old variable stars deep in the maelstrom of stars at the center of our Milky Way galaxy. Science Magazine(Oct 12, 2016) n a star that varies noticeably in brightness Syn|Exp|Hyper variable North Star the brightest star in Ursa Minor; at the end of the handle of the Little Dipper; the northern axis of the earth points toward it star (astronomy) a celestial body of hot gases that radiates energy derived from thermonuclear reactions in the interior |
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