Straight angled line of lights in the sky

We were headed south along Highway 38 away from our home. I looked out my window to the west and noticed a long line of what appeared to be stars or lights. They were rather faint, not nearly as bright as a star. They were all small dots and were not moving. They were all evenly spaced in a perfectly straight angled line and were all identical in appearance. The line was angled starting from the horizon going upward to the north. They appeared to be over the mountains that are west of Tremonton Utah. From the first time I saw them to the time they disappeared was about 3 minutes. I had my husband pull over so we could see them. My husband who is a mechanical aerospace engineer also saw them, as well as my 14yr old son. We all saw the same thing and they looked the same to all of us. When we pulled over I tried to take a picture but couldn’t see it on the camera on my phone. My husband got out and tried to take a picture but they disappeared from sight. They ! did not move or disperse they just completely went away.