Buying a star is a symbolic novelty gift rather than a legal or scientific transaction. While various companies provide professional-looking certificates and registration in their private databases, these names are by the International Astronomical Union (IAU) , NASA, or any scientific community. The Reality of "Star Ownership"
: There is no official way for a member of the public to "buy" a star or legally name one after an individual. Official star names are alphanumeric codes used by astronomers for precise location. buy a star and name it after someone
: Since multiple companies exist, it is possible for the same star to be "named" different things by different providers. Gift Experience & Pricing Rules to Name a Star - IAU Office for Astronomy Outreach Buying a star is a symbolic novelty gift