Since these are private registries, different companies can "sell" the same star to multiple people under different names.
Many organizations, such as the American Astronomical Society , warn that these services can be deceptive if they imply official scientific recognition. Meaningful Alternatives buy a star and name it nasa
If you want to honor someone through astronomy without using unofficial registries, consider these legitimate options: Rules to Name a Star - IAU Office for Astronomy Outreach Since these are private registries, different companies can