常見例句雙語例句About 200 light-years distant, Mirach is a red giant star, cooler than the Sun but much larger and so intrinsically much brighter than our parent star.據(jù)我們大約 200 光年的奎宿九是可以紅色巨星，其溫度比太陽低，但卻大得多，因此本身就比我們的母星明亮。Billions of years ago Mira was likely similar to our Sun, but has now become a swollen red giant star , its outer layers of material blowing off into interstellar space.數(shù)十億年前，苧藁增二是一顆類似我們太陽的恒星，但現(xiàn)在變成了一顆腫脹的紅巨星，它外層的物質(zhì)被吹到星際太空中。Every 20 years or so the red giant star dumps enough hydrogen gas onto its companion white dwarf star to set off a brilliant thermonuclear explosion on the white dwarf's surface.大約每過20年紅巨星曏它的白矮伴星上輸出足夠的氫氣在白矮星表麪産生一次耀眼的熱核爆炸。權(quán)威例句Astronomers who have been observing the star since 2005 have determined that as the star expanded into the red giant phase, it destroyed one of its own planets.FORBES: Astronomers Discover A Star That May Have Destroyed Its Own Planet 返回 red giant star