This one is the asteroid ida. note its little moon satellite, dactyl , at the right.

这是小行星依达，右方的小白点为其卫星达克图。

youdao

This one is the asteroid ida. note its little moon satellite, dactyl , at the right.

这是小行星依达，右方的小白点为其卫星达克图。

youdao