I saw 2 lights moving very fast across the sky.

So, this isn't the most exciting story but I thought it was a cool experience and I have no idea what this could have been besides a UFO.
I was walking my dog in my neighborhood, it was dark out and apart from a handful of small clouds it was a clear night so I was looking up often to check out the stars. At one of the times I was looking up I saw 2 lights that were high up and close together (like almost an inch apart if I held up my arm and measured with a ruler), but they were far away so I'm not sure how far apart they actually were. The front one was bright and almost looked like a star but a bit bigger, the second was also bright like a bigger star but had a light glow circle around it (about 1/4 inch diameter, if I held out a ruler at arms length and measured). Like a circle of glowing light with a brighter center dot. But it wasn't super bright, if I didn't happen to look up right where they were I wouldn't have seen them. I think the first circle might have also had a glow circle around it but much lighter than the second one. But I can't be sure, it happened so fast. They appeared to be much lower than an airplane (which I saw many of that night) and they moved very, very fast. I saw them when I looked straight up and within 5 seconds they had moved across the sky and out of sight. There was no sound at all, so it couldn't have been a low flying airplane or helicopter. They were much bigger and way faster than any satellite I've seen. They moved very fast and smoothly, it looked almost like the 2 lights were either chasing each other or were attached to something pretty big but I didn't notice a shadow or shape around the lights. The lights didn't blink and stayed the same size and brightness. I'm colourblind though so I cant speak to what colour the were or if it changed colour.
I can't think of anything known that it could gave been. I don't need to be contacted by an investigator but it would be cool to find out what it was or if anyone has seen anything like this before.