Great game.
I have three suggestions for you:
first, make either the stars smaller and lighter, or extend the playable area, maybe letting the player scroll in the 4 directions for a while.
Second, to improve the satellite speed control, make the speed determined by the distance for which the mouse is dragged, rather than the speed. I know this is less throw-like, but this way laptop users could play as easily as desktop users do.
Third, make a level editor, with a sandbox mode, or begin with some easier levels, with only one star, for example.
This is promising: keep on working, and it'll become great.