Auckland International Airport Ltd (ASX:AIA) has launched a non-underwritten retail offer to the tune of $200 million as part of an equity raising campaign announced earlier this week – which itself had begun with a $1.2 billion placement of new shares to new and existing investors in New Zealand, Australia and elsewhere. The placement – which priced shares at $6.95 each – was announced as having been successful the very next day, given strong support. According to the retail offer, eligible investors will be able to apply for up to NZ$150,000/A$45,000 worth of AIA shares, with the closing dat…