I'm not sure if anyone will read this but I'm trying to find an explanation for what I've just seen in the night sky. In real-time, without the aid of telescope, I would bet that I just witnessed a supernova. This happened at approximately 3:15am ET above the Northern horizon. I will have to study a constellation map to pinpoint where this took place. All I'm trying to find out is if my eyes did not deceive me as this surely would have been noticed years ago by our telescopes. This all seemed to have taken place in about 5 seconds.