The young family's first public appearance together has been the moment that the world's media and crowds of onlookers camped outside the hospital had long been waiting for. It recalls a similar appearance three decades ago, when Princess Diana and Prince Charles carried the newborn William out to pose for photographs on the same steps in 1982. Officials said Monday the baby was born at 4:24 p.m. and weighs 8 pounds 6 ounces. The infant will become third in line for the British throne after Prince Charles and William. Kate checked into a private wing at St. Mary's Hospital in central London early Monday morning. William spent the long hours of labor at her bedside. This is the couple's first child.