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Alright, I forgot to do my quick tutorial on magnitude. The magnitude scale and the inverse logarithmic scale, meaning as the magnitude goes up, the apparent brightness of an object increases by a factor of about 2.5. It did this object that the human eye can see under optimal conditions. That means darkness is blown away from the city without all that smoke in the air as well. About 6 magnitude. Any magnitude less than 6 are visible with the naked eye. So a magnitude 5 object is 2.5 times brighter than a magnitude 6 object, while a magnitude 7 object is 2.5 times dimmer. That definitely requires binoculars or telescopes to see any 6 greater than 6.