this link:
http://home.carolina.rr.com/nirgal/buyastar.html
tells the story of an astronomer who had to use a source that went down to 15th magnitude to find the star.

More links:

http://www.enzerink.net/peter/astronomy/starfaq/

http://www.aoas.org/article.php?stor...612&mode=print

Also saw some references to past court cases where one star naming company has sued another.

__________________
"I'm as accurate as any psychic. And I'm a cartoon!" -- Squidward

"Arrrgh, the laws of physics be a harsh mistress!" -- Bender