Low steady, ambersih, lights flying in a very slow straight line. At a point, they would make a hard turn up and away.

I saw a low flying line of what I thought was aircraft coming into our regional FBO (KRRL). It struck me that they were going so slow and their lights were steady and not red blinking anywhere. I pulled away from the city lights and stopped by the river and had a very clear view and watched this for at least 10 minutes. The lights were in a line spaced fairly evenly and at a point they would turn to my left (They were traveling north and turned to the east) and start a gradual incline but also going slightly south. I.e., coming from 6 o’clock and then turned to 4 o’clock with an incline. After they turned away and up they would disappear within a 10 seconds. They all seemed to turn at roughly the same spot and head in the same direction. I did not hear a sound and could not get a good idea of how close they were. One seemed to be close enough that I started stepping back into my truck before it turned. They just kept coming up over the horizon and all doing about the same thing.