3 lights in triangle shape moving very fast from north to south.Was outside stargazing and watching for shooting stars. Saw 3 steady lights about the same brightness of average visible stars in a triangle shape and about the width of Orion's belt in the sky moving very fast from north to south. I noticed it as it past near Betelgeuse and followed it without blinking as it head south and then out of sight. It didn't appear to move toward the horizon, just simply away.As it moved it passed in front of some stars. It didn't block them out but they were not clearly visible either. Instead the star light seemed disrupted as it passed over them, like looking through moving water. The thought occurred to me afterward that it looked like the cloaked effect used in sci-fi movies. It was dead quiet outside and there was no sound. Waited to hear a delayed jet sound but there was nothing.I'm not ruling out meteors but this was like nothing I have ever seen. They never seemed to change in brightness, no trails, and they didn't ever seem to fizzle out. I watched for a long time after but never saw it again.