Saw a bright white multi-directionally object moving in same vicinity.

I thought I was seeing a sliver of the moon when suddenly it moved laterally and stopped. It looked like a bright white disk and then an arch. I forgot to zoom in while taking the videos and photos, but if you zoom in on either you can see the shapes I mentioned. It continued moving quickly within a limited space in the sky and at one point it seemed to released a vapor-like emission, like a cloud or haze that vanished almost as quickly as it appeared. Then there were little teeny specs of silver like three or four of them GOING INTO the object, as they did this the silver specs released vapors off to the side, that disappeared just as quickly as the first vapor did. I was so startled when I first saw it it took me a minute to think of filming it. I hope what little video and photos I did get helps.