Check back around 22:00 EDT. 
Lousy ISP. Anyhow, for 300, this was the first asteroid discovered to have a satelite of its own. You might as well tell me the satelite’s name too.
What is the asteroid Ida?
and for the follow-up…
What is the satellite Dactyl?
alright for the astroid, what is The Yavin, and for the satellite, what is The Death Star
I suppose the Death Star was discovered before Ida & Dactyl (hell, even Mimas was discovered before those two. if you don’t understand, look at a picture of Mimas). Either way, Kristina has 300 points.