Yup. I figured it out and went from zero to five immediately when I figured out it wasn't in the least orbital, but rather it was Undertale: you had to click when it was exactly tangent to the target, and then hitting anywhere within the target area was a win.

That's also when I lost all interest, which isn't quite fair in that it's still a slingshot game, just not in the least orbital. It's just a slingshot. No stars required.