While sitting in our hot tub on outdoors deck we noticed a definitively cigar shaped craft moving across the sky.

The cigar shaped craft (no wings) moved at a relatively high rate of speed from northeast to southwest. There were several commercial airliners in the sky at the time, all leaving contrails. The UFO left no contrails and had no lights, blinking or otherwise, that we noticed. It appeared to be made of metal/aluminum, e.g. silver colored. The light from the craft appeared to be illuminated from the sun and not generated any light on its own. That said, after the craft passed over the Sangre de Cristo mountains by maybe 50-80 miles it suddenly displayed a bright white light for approximately 5-10 seconds and it seemed to dim and then the craft disappeared as if into thin air. It became like a star and then it was gone.