Rána, or The Wayward, a name given to the Moon by the Noldor, Elves of the Second Clan who migrated to Valinor and lived in Eldamar.
The Moon was The Silver Flower, and was more highly valued than the Sun, by the Elves, both because it came from the Elder Tree, and because it rose first.
- Tolkien’s Narsilion, the “Song of the Sun and the Moon.”

Measurment is around outer arm, not around bust.