Triangle craft, covered large area around a football field or two, contained three lights with one light more luminous than the others

There were three lights outlining a triangle shape. It was dark and the outline of the triangle shape was barely visible. I thought it may be three stars but the configuration was too symmetrical and seeing the faint outline of the overall craft. One of the lights was much brighter than the other two which overpowered the stars in the background. The craft was barely moving and hovered in place. I checked a star chart on a phone app to see if there was a bright star or planet where I was looking, but the brightest object where the craft was located only had a brightness magnitude of 2. I took a video with my phone and only the main bright light showed even after attempting to upscale the brightness to reveal celestial objects in the background. I also attempted to videotape the brightest stars I could see in the sky in a separate video to see if the phone would pick them up, to no avail. In the video the light appears larger and then smaller, this is due to zooming in, it was not noticeable if the craft was moving vertically.