Unusual and perfectly quiet unknown object with pink/red faint lights

We were walking about our neighborhood a few weeks ago, it was about 8:30-9:30 PM EST. The sky was perfectly dark and it was quiet. My partner mentioned he saw something above us – looking up, it took a moment to see the faint lights. We were unable to make out the shape of the object or if there was one or multiple. However, the faint lights were reddish, it seemed like a row of lights were side by side floating in a long line. It seemed pretty close to us, and initially we thought it was still, then realized it was floating, moving very slow. We watched for about 5-6 minutes and then it was gone.
We went about our night and then got busy with life. However, I went online tonight to see if anyone else saw this and wanted to know what it might be. What was odd was how quiet it was being that it looked like something that spanned maybe 20-40 ft. I ran across this site and would love to know what it was. I don’t assume it was an alien yet would really like to satisfy my curiosity.