<span>1. It must be an object which independently orbits the Sun (this means moons can't be considered planets, since they orbit planets)
2. It must have enough mass that its own gravity pulls it into a spheroidal shape.
3. </span><span>It must be large enough to "dominate" its orbit (i.e. its mass must be much larger than anything else which crosses its orbit).</span>
The sun is about 109 times larger than the earth in diameter. <span>1,300,000 Earths can fit in the sun.</span>
Answer:
I'm pretty sure its the 2nd one.
Radiocarbon saying assume the half life for radioistopes change over time. The half life of C -14 is 5730 years