A constant slow moving globe of light that moved from the south east to the north east

I looked up into the clear southern sky from my front deck after having let my dogs out and saw what appeared to be a slow moving star. As it moved towards me it expanded into a larger globe. At first I thought it was the moon reflecting off of a moving cloud, but there was no moon out and no clouds around. It moved slowly across the sky at a speed faster than a high altitude plane. There were no flashing lights, just a globish white shape that got larger as it passed overhead moving to the north east. There were no sounds eminating from it. I called my wife out onto the deck to see it and we both saw it travel overhead and then fade out into the distance.