Lights moving erratically in night skyAt approximately 9:00 pm, or slightly after, my wife and I were leaving our daughter's house after a Mother's Day dinner. As I stepped into the driveway, I noticed what appeared to be an airplane moving about 30 degrees to our left. It was visible right beside the crescent moon. I didn't really pay much attention until I saw it suddenly come to a dead stop and hover for 2 or 3 seconds and begin to move back the way it had come. I called to my family and 6 adults all saw the object moving at seemingly random directions in the same area. Again it appeared about 30 to 45 degrees off the horizon of trees, and was near the location of the crescent moon. The event last for maybe two or 3 minutes before the object moved below the tree line and out of our sight.The object appeard to have 3 solid red lights, close together in a vertical triangular shape. It had a flashing white light very similar to an airplane marker light and that's why I didn't initially react to it. The object was about the size of a pencil eraser held at arm's length or maybe just a bit larger. It moved slowly traversing no more than about 10 degrees arc, primarily traversing from our right to left, back and forth, up and down. It was absolutely silent. Unfortunately, we had no frame of reference to guage its size or distance from us.I joked about a UFO but also suggested a drone closer to us as it seemed a more likely explanation. However, if it was a drone, I would have thought we would be able to hear it. None of us was remotely frightened but all were very curious.