This has got to be the work of the Linguist, Zackariah Sitchin when he escaped peer-review. An asteroid implies to me that it once orbited the sun between Mars and Jupiter. But if it was twice the size of the sun, we would all be orbiting it instead of the sun. to be fair Sitchin's Nibiru is less than twenty times the size of Jupiter, not twice as big as the sun, I got confused...