Not necessarily a Poser-specific question, but a 3D question in general. Does anybody know where I can find an accurate, realistic 3D starmap/HDRI? I'd imagine that should be something that's easy to come by, but I guess I just don't know where to look!

I should probably clarify what I'm talking about, too. I know there are tons of 2D space backgrounds out there and I know there are plenty of tutorials on how to create your own. That's not what I'm looking for. I'm also not looking for "stylized" starmaps, like ones with big purple nebulas and all that science fictiony jazz, which is mostly what I've been able to find. I'm looking for just a plain old 3D HDRI or spherical map that accurately represents the stars more or less the way they'd look to an astronaut puttering about the solar system.

Any ideas/suggestions?