Most unexplainable thing I’ve ever seen

Sitting by a fire and noticed what I at first thought was a cloud, but noticed it was staying consistent and moving quickly, didn’t dull nor brighten or change shape, cigar shaped, kept a clear outline the entire time and dulled when moving behind a cloud so we know it was very distant. Moved pitch and direction while keeping same lighting and shape. The light was not as bright as the stars but very consistent and moved uniform-ally Until fading out of sight 15-20 seconds. Very large but far away and moved in a manor that showed uniformity and not consistent with anything I deem explainable.