Bright moon like shape seem hovering in the clearing in trees behind my home that would fade and reappear.

I noticed a bright white light through my blinds where the trees are thick behind my home. It was above the large cleared area in the trees. It is typically very dark there. I looked through my blinds and saw a light through the trees. It was an almost sphere like shape at times shining very bright and seemed to be hovering in one spot, but movement was noticeable as it hovered. I could hear a low humming sound. At times the light would appear to have a beam and other times it would fade and dissapear. When the light reappeared it would become very bright. It looked similar to a near full moon hovering lower than the tree tops, but it was not the moon.