What size would a planet have to be such that I could throw a tennis ball into orbit?

If I was affixed to the surface of some solid spherical body in space (so as to ignore effects like me floating away), would it be possible for me to throw a tennis ball so that it went into orbit around the body?

I imagine the average density would be an important variable since I can only throw a tennis ball so hard.

I think, if the density was right, there would be some radius R of this spherical body such that I could throw a tennis ball and it would go into orbit around this sphere.

For the average peson, what would the density and radius be of a sphere such that you could toss a tennis ball and it would go into orbit around this sphere?

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What size would a planet have to be such that I could throw a tennis ball into orbit?

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