Tilion

Tilion (Quenya for 'the Horned') was the youth whom the Valar chose from among the Maiar to steer the island of the Moon. He was a lover of silver, and used a silver bow. In the days of the trees in Valinor, Tilion had been a hunter from the company of Oromë, but in his free time often came to Lorien, to the pools of Estë. Because he rested often there, under the light of Telperion, he came to love it and begged to be given the care of it's last flower. He was said to be less mighty than Arien, the Maia chosen to guide the Sun.

Tilion was reckless at times, and did not always follow the correct path, causing the Moon to be at times in the sky at the same time as the Sun, not appear at all, or even block out the light of Arien.

In writings by Tolkien alluded to in the published Silmarillion, Tilion is said to have been in love with Arien, and because he sought her out he came too close to the immense heat of the Sun, and the Moon was scarred.

It is possibly that he was the subject of the songs and tales told in Gondor and The Shire see: The Man in the Moon Stayed Up Too Late.