Only if you assume an infinitely large universe in which they can exist. After all, you've also got to consider those between that and the sun's size, those approximately the same size as the sun, and all of those stars that are smaller than the sun. Then you've got to consider planets and planetoids, cometary material, and nebulae. Then you've got to take into account the amount of space that is, well, space. (Empty and without anything inside of it.) A finite universe has a limit to what it can hold; only an infinite universe would not.