白矮星

We also describe the basic principle of white dwarf cosmochronology and its application in defining the age of the Galactic disk, globular clusters, open clusters and Galactic halo.

介绍了白矮星宇宙纪年学研究基本原理及其在银盘、球状星团、疏散星团以及银晕年龄确定方面应用现状。

If the incoming projectile were a white dwarf—a superdense star that packs the mass of the sun into a body a hundredth the size—the residents of Earth would be treated to quite a fireworks show.

如果接近是颗白矮星（whitedwarfstar，种超密恒星，质同于太阳，但其积却不到太阳百万分之），那麽地球上居民将可以看到场壮丽烟火秀。