In the past several years,astraonomers have defected more than 80 massive planets, most of them at least as large as Jupiter,circling other stars . 这是原文正确的句子,我想问问这个circling other stars 怎么解释?circling 修饰的是什么?难道是作为句子的伴随结果还是伴随动作,但从意思上面看来好像是修饰的是massive planets,但逗号后面的v-ing不是不能修饰名词的嘛?还有如果换成 which circle other planet 对吗?