How about Planet Moon?
UPDATE on this topic here.
Check out the new solar order that upgrades Asteroid Ceres and Planet Charon to planets. Pluto, it's moon Charon, and 2003 UB313, a Pluto-sized object located at the fringes of our solar system, would be reclassified as planetary "plutons." Every round object circling the sun may become a Planet, unless it orbits another planet. How about planet moon? If the newly proposed planet definition next week gets approved by by the International Astronomical Union (IAU), moon will be a planet in a few billion years. If the center of gravity, called the barycenter, is outside the larger object, then the smaller object is a planet. That definition elevates the Pluto's moon Charon to planethood. Not all astronomers agree with that idea. Theoretically, Earth's moon was born in a catastrophic collision more than 4 billion years ago. Initially it was very close to the planet but began drifting away very slowly. About 1.5 inches (3.74 centimeters) every year. Right now the system's barycenter is inside Earth. But that will change over time. At that point the Moon would be promoted to planetary status.
We will find out on August 24, 2006 after the IAU meeting in Prague. Go to the update on this topic.
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