very tangential similarity that photons have momentum, and so impart a force on massive object. But it's also confusing compared to this, because photons are heating the substance (which actually would impart an opposing momentum), to "boil" it, to use kinetic forces to push in the desired direction. I appreciate the link but I don't think the effects are that similar.

So if an orbit brought an asteroid close enough to a star to have this effect on the surface of an asteroid, you would consider it an entirely different phenomenon?