Best compound to get rid of scratches

I have some marks on my roof. It looks like someone tried to wet sand a one square foot section without enough water in one spot and another smaller one.. I would like to try a compound to see if I can pull some of the scratches out. Something I can use by hand not with a buffer as I have never tried to use one and don't want to burn it worse than it is now.

McGuires polishing compound works pretty good for things like that but it's going to take awhile by hand.
I just used it today with my buffer after some wet sanding to polish out the paint afterwards.
If you use a buffer flat on the surface you won't hurt anything.
It's when you use the edge of the buffer pad, or go over corners and edges with it is when you can burn through quick.