How much planets do the galaxy have

On average a galaxy has, between 800 billion and 3.2 trillion planets.

at least 100 billion

Explanation:Our Milky Way galaxy is home to at least 100 billion planets, and possibly many more, a new study suggests. "It's a staggering number, if you think about it," lead author Jonathan Swift, of Caltech in Pasadena, said in a statement. "Basically there's one of these planets per star.

convex lenses are thicker at the middle. rays of light that pass through the lens are brought closer together (they converge). a convex lens is a converging lens. when parallel rays of light pass through a convex lens the refracted rays converge at one point called the principal focus.