It was a bit low and a bit behind the clouds but it was moving very slow and I knew that no plane can go that slow, it flew off after.

So pretty much it was quite bright I was standing by the water for a Fourth of July celebration and then all of the sudden theres this low bright light moving very slow. No aircraft could have gone that slow and stay in the air. There is an airport in cape cod but it wasn’t coming from that direction and I’m sure it would be way further up and I would probably see flashing lights on a plane. It did surge faster after I turned away and looked back and it was gone. It was a white light it was a round object and moving slow.