Rasvatähdön

I’m not finding reliable sources for a term called “rasvatähdön.” Could you clarify the intended domain (astronomy, folklore, linguistics, cuisine, etc.) or provide a source? If you’d like, I can also create a neutral, fictional wiki-style entry for a concept named Rasvatähdön, with background, usage, and references. Once you confirm the domain or scope, I’ll generate a concise article under 300 words.