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.

如果接近天体是颗白矮星（whitedwarfstar，种超密恒星，质量约等同于太阳，但其体积却不到太阳百万分之），那麽地球上居民将可以看到场烟火秀。

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.

介绍了白矮宇宙纪年学研究的基本原理及其在银盘、球状团、疏散团以及银晕年龄确定方面的应用现状。

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.

如果接近的天颗白矮（whitedwarfstar，种超密恒，约等同于太阳，但其积却不到太阳的百万分之），那麽地球上的居民将可以看到场壮丽的烟火秀。

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.

介绍了星宇宙纪年学研究的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的应用现状。

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.

如果接近的天体是星（whitedwarfstar，种星，质量约等同于太阳，但其体积却不到太阳的百万分之），那麽地球上的居民将可以看到场壮丽的烟火秀。

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.

介绍了星宇宙纪年学研究的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的应用现状。

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.

如果接近的天体是星（whitedwarfstar，种星，质量约等同于太阳，但其体积却不到太阳的百万分之），那麽地球上的居民将可以看到场壮丽的烟火秀。

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.

介绍了白宇宙纪年学研究的基本原理及其在银盘、球状团、疏散团以及银晕年龄确定方面的应用现状。

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.

如果接近的天体是颗白（whitedwarfstar，密恒，质量约等同于太阳，但其体积却不到太阳的百万分之），那麽地球上的居民将可以看到场壮丽的烟火秀。

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的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的应用现状。

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.

如果接近的颗白矮星（whitedwarfstar，种超密恒星，等同于太阳，但其积却不到太阳的百万分之），那麽地球上的居民将可以看到场壮丽的烟火秀。

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.

如果接近天体是颗白矮星（whitedwarfstar，种超密恒星，质量约等同于太阳，但其体积太阳百万分之），那麽地球上居民将可以看场壮丽烟火秀。

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.

白矮星宇宙纪年学研究的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的应用现状。

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.

如果接近的天体是颗白矮星（whitedwarfstar，种超密恒星，质量约等同于太阳，但其体积却不到太阳的百万之），那麽地球上的居民将可以看到场壮丽的烟火秀。

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.

介绍了白矮宇宙纪年学研究基本原理及其在银盘、状、散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.

如果接近天体是颗白矮（whitedwarfstar，种超密恒，质量约等同于太阳，但其体积却不到太阳百万分之），那麽地居民将可以看到场壮丽烟火秀。