This list contains 1 moon that starts with the letter Y — “Ymir”. Moons like this one are natural satellites that orbit planets, ranging from small, irregular space rocks to large spherical worlds with their own atmospheres and geological activity.

Moons are natural objects that orbit a planet, held in place by gravity. Our solar system contains hundreds of them, from Earth’s familiar Moon to the dozens of tiny irregular moons orbiting the outer gas giants. Ymir itself is named after a frost giant from Norse mythology, part of a long tradition of naming Saturn’s moons after figures from ancient stories.

Below you’ll find the table with Moon, Parent Planet, Diameter (km), Discovery Year, and Description.

Moon: The name of the natural satellite. Names often come from mythology, giving you a clue about the moon’s discovery history or the tradition used for that planet’s moons.

Parent Planet: The planet this moon orbits. This tells you where in the solar system the moon lives and which gravitational body controls its path.

Diameter (km): The moon’s approximate size measured in kilometers. This helps you understand whether you’re looking at a tiny irregular rock or a large, geologically active world.

Discovery Year: The year astronomers first identified this moon. More recent years often mean smaller, harder-to-spot moons that required modern telescopes and imaging technology to find.

Description: A short summary of the moon’s key traits, orbit type, and any notable features. This gives you a quick overview so you can decide if you want to learn more.

Moons

Descriptions