Triangle over Granite shoals, TX

The report, as filed

My 28 year old daughter and I were sitting on the back deck of our house at approximately 9:15 PM. It was a clear, moonless evening and we were looking at the stars and discussing what we could see in the night sky. We were facing south. I saw what I first thought were large birds flying in formation coming over the tree line from west to east. We both then noticed that it wasn’t birds but instead, it was very softly glowing formation of green/yellow lights in a flat V shape. The lights were sort of shaped like a boomerang. There was one light at the point followed by three lights down the right side and two lights down the left side. As it passed almost directly over us we both noticed that it was actually a large craft. We could see the faint outline of the edges and the craft was dark and matched the color of the night sky. It moved slowly across the sky and it made no noise. It was flying low - between 500 to 1000 feet and it appeared to be about the size of a 747 airplane. It took about 10 seconds to pass out of view behind the trees to the west. We both clearly saw it and neither of us could come up with a good explanation of what it was. I am a 57 year old retired executive from the CPG industry. I am college educated and would be considered financially well off. My daughter is a college graduate and is employed full time in Austin, Texas. We were at our second home at Lake LBJ - we do not live here full time.

Held as-reported from National UFO Reporting Center (record NUFORC #160139). Witness text is preserved verbatim, including its spelling; nothing is edited beyond formatting.