Henry Spencer wrote:
No, if I recall correctly -- it's been a while -- the hypothetical
"vulcanoids" within Mercury's orbit would be leftovers from the early days
of the solar system, the innermost solid remains of the original solar
nebula. Perturbations from planets can't easily get you into an orbit
like theirs.

How stable would be the orbits of "vulcanoids"? They're packed in close
to several planets and the sun.

Mike Miller