貌似恒星系等于银河系,太阳系等于行星系
转省的有人杠我(虽然可能已经有了),读点天文学科普书籍都知道太阳系是行星系,银河系是恒星系。行星系这东西的解释可以看NASA的官网的解释(够权威了吧)
网页链接原文粘贴过来
Planeta mry Systems
Our solar system consists of the Sun, whose gravity keeps everything from flying apart, eight planets, hundreds of moons, and billions of smaller bodies – from comets and asteroids to meteoroids and tiny bits of ice and rock. Similarly, exoplanetary systems are groups of non-stellar objects circling stars other than the Sun, and astronomers have found thousands of them.
恒星系这个国内比较常用,对应国外应该是宇宙岛。
星系是个泛称包括恒星系,行星系等等(有些人可能错误的认为只是银河系哪一级别)。xx系基本就是由xx组成的系统。
河系是才错误的认知之上的一个生造词。