In this task, you're given five sentences, numbered 1 through 5. Your job is to generate a title for the story that makes complete sense. The title must be short, with less than three words, use simple language, and include the main topic of the story.

Sentence 1: Tim is an amateur astronomer. Sentence 2: He bought a decent telescope. Sentence 3: He loves spending time exploring space. Sentence 4: He found a rare area that was yet discovered befor. Sentence 5: It was a new planet he got to name.
Lost Planet