Quasi-star
Quasi-stars lived for about 7 million years. The black hole at the center of the star could grow up to 1,000 to 10,000 solar masses. If quasi-stars existed the black holes they created could have become the supermassive black holes we see at the center of most galaxies, including our own Milky Way. Quasi-stars were very very very big, as big as our solar system. They were also as bright and heavy as a small galaxy.