If you are looking to "buy a star," it is important to understand that you cannot legally or scientifically own a star or its official name. All stars are named and cataloged by the using alphanumeric designations for scientific purposes.
If you proceed with a commercial gift, compare providers based on the "extras" they offer: Rules to Name a Star - IAU Office for Astronomy Outreach buy a real star
However, you can purchase a "star naming gift" from private companies. These services provide a symbolic dedication that is recorded in their private registers rather than in any official scientific database. 1. Choose Your Approach If you are looking to "buy a star,"