| 单词 | red dwarf |
| 释义 | red dwarf (once / 124414 pages) n A red dwarf is an old, cool star. Although a typical red dwarf is small by star standards, it's still bigger than Jupiter, the largest planet in our solar system. Red dwarfs are the most common kinds of stars in the Milky Way, but they are so relatively dim and small that they can't be seen without a telescope. The star that's closest to our sun is a red dwarf called Proxima Centauri. In astronomy, cooler stars are described as red, and hotter stars are considered blue. The term red dwarf was first used around 1915. WORD FAMILYred dwarf: red dwarfs USAGE EXAMPLESEarth-sized planets covered in water may be abundant around red dwarfs, the most common type of star in the Universe. Nature(Nov 01, 2016) Although the original Kepler mission examined many Sun-like stars, the majority of stars in our Galaxy are smaller, fainter, cooler stars, known as red dwarfs. Nature(Oct 20, 2016) It’s a type of red dwarf known as a flare star. The Verge(Aug 25, 2016) n a small, old, relatively cool star; approximately 100 times the mass of Jupiter Syn|Exp|Hypo|Hyper red dwarf star Proxima Centauri the nearest star to the sun; distance: 4.3 light years flare star a red dwarf star in which luminosity can change several magnitudes in a few minutes star (astronomy) a celestial body of hot gases that radiates energy derived from thermonuclear reactions in the interior |
| 随便看 |
英语词典包含147318条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。