Very very slow moving lights, traveled a small distance, very high in the sky, lasted about 5 minutes.

March 3, 12:20 AM EST Was outside smoking my last cigarette for the day, when I noticed multiple flare type flashes almost straight up in the sky.  I see planes all the time as I am in between two major "flight paths" coming and going out of Atlanta.  The altitude of this "flash" was well above that and almost could be considered a star.  I am also aware of the regular flashing running lights on aircraft. This was not an aircraft.
I am also fairly certain it was not an irridium flare.  As this flashing started at a certain point in the sky and was moving very very slowly compare to aircraft.  It lasted about five minutes, with flashes about every 10-30 seconds, and did not travel very far in the sky before the flashing stopped.  There was no pattern to the flashing other than it was very brilliant and was a slow flash or flare type light.  Not the blinking type lights on aircraft.  It flashed over ten times in time period I witnessed this event.  Distance traveled from start to finish would be the length of your index finger if you held it up to the sky.
I am not an astronomer or science guy of any kind, as you can tell.  I go outside to smoke to keep from smelling up the house and bother the rest of my family.  At night, there is nothing outside to look at but the sky.  So, I see planes all the time along with shooting stars and I believe I saw a satellite one time on the horizon.  It did not flash and was moving quickly and steadily.