What do we know about this planet?

What we don't know is how you spell it. Is it Baraspine, or Barsapine? The spelling seems to differ in every sourcebook.

There is some information on Baraspine in the adventure module The Black Sepulchre , where you can find a small gazetteer.

That's disappointing. I don't really want to buy an adventure to get information on a planet I might like to use in my adventure.

There is some info in the Radical Handbook