Lily looked up from her desk once the professor began to speak. What do us, first years, know about astronomy. Lily knew the answer to this one so she raised her hand before answering, "Astronomy is the study of the night sky-the stars, the planets, various phenomena that appear in the sky." For once Lily actually liked her answer, and hoped that the professor would agree. He seemed like a nice person, after all, he did give them new robes and duck slippers.