Possible Clues:

• Moon of Saturn
• Famous racehorse who lit up the Classics?
• Saturn moon named for a Titan
• Father of Helios
• Extremely excited: over the moon — new moon
• Small particle containing iodine found in Saturn's moon
• Satellite of Saturn
• Intensive publicity for return of noir from Longfellow
• Satellite state of US there's ballyhoo about seizing
• A Titan in Greek myth, the father of Helios and Selene