20-30 bright circle white lights moving across sky in straight line

Had to take my dog outside early in the morning a little after 5am when still dark outside. I looked up at the night sky to see two groups of at least 20-30 bright white lights in a straight line. They were moving across the valley in a straight line formation. I couldn’t hear anything. It was a silent night. The lights were very bright and small, a little bigger than the stars. But I could tell they were lower than the stars and it appeared to be 20-30 in a row following each other.  After it moved across the valley sky it disappeared.