Or 5.5 squared times hotter? E = mc^2, right?
…for all the difference it makes to your point, anyway. 5.5 times … 30 times … that’s all well within YEC error bars, right?
[Ahh – I see @David_Lee beat me to it … No the inverse square law would still just be working on the changed quantity - if it’s ‘K’ times brighter at the source, it’s ‘K’ times brighter everywhere.]