1.Unlike their more massive counterparts, sunlike stars are thought to die gracefully by ejecting their outer gaseous layers in a nonexplosive process that takes about 10,000 years.

1.不像大质量的恒星，同太阳一般大小的恒星，死状就相对。们的非爆发性过程大约需要一万年的时间，逐步弹射出其外部气体壳层。