He’ll need 360-degree vision to keep up with his family now. Anderson Cooper announced the birth of his second son live Thursday night on CNN’s “Anderson Cooper 360.” “I wanted to start out with some good news, which also happens to be very personal news,” Cooper opened, sharing photos of his first son, Wyatt. “If he looks particularly happy in this picture, it’s because he now has a baby brother. His name is Sebastian, and I would like you to meet him.” With photos of Sebastian on screen, Cooper, 54, announced that the newborn’s full name is Sebastian Luke Maisani-Cooper. Sebastian is 22 mont…