There is no astronomical object known as a "penetrating star." It's possible you're thinking of a different term or concept. Can you please provide more context or information about what you're referring to?

For example:

* Did you hear this term in a specific context, like a book, movie, or game?

* Do you remember any other details about it, like what it does or what it looks like?

With more information, I can help you understand what you're looking for.