sun-star的意思|示意

Whether a planet can support life depends on the size and brightness of its star, that is its 'sun'.

一颗行星是否能够维持生命取决于它的恒星--即它的"太阳"--的大小和亮度。

This newest planet, No. 5, resides in the habitable zone, about 0.8 Earth-sun distances from its star.

最新发现的这颗5号恒星，位于可居住区内，距离它的恒星距离为地-日距离的0.8倍。

First, the intact sun-like star (left) ventures too close to the black hole, and its own self-gravity is overwhelmed by the black hole's gravity.

首先，画面左侧是一颗冒险过于接近黑洞的类太阳恒星，此时黑洞的引力压倒了恒星的自身引力。

This diagram shows a brown dwarf in relation to Earth, Jupiter, a low-mass star and the sun.

这张是褐矮星相对地球、木星、低质量恒星和太阳的对比图。

It's actually been there all along, but astronomers have only now spotted what could be the seventh closest star system to the sun.

事实上它应该存在很久了，不过天文学家们一直只能观测到距离太阳第七近的恒星系统。

For comparison, the closest star to the Sun is over 4 light-years away.

对比一下，离太阳最近的恒星也在4光年之外。