Looking N N W from the cement pad in front of my house as the sun was setting, an oval of intense white light hovered in the sky, there was no wind and no clouds and the ambient ground temperature was 70 degrees and falling. It appeared to be somewhere over 30,000 ft. above the Earth's surface and considering that height it may have been quite a large object. The Light emission and some modulation in the objects shape continued for the full 20 minutes I observed it. As full dark approached, it faded slowly off into the NW quadrant of the sky, accelerating gradually until it was just a pinpoint of light that might be mistaken as just another star. As for intensity of the white light, it was within its contained space brighter than the sun in terms of white light luminosity. I didn't attempt to refract the emitted light to see what color spectrums were present, but such a basic simple measurement could be informative.((NUFORC Note: We suspect that the time and date may not be precise. The witness indicates a time of midnight, but states that the sun was just setting. We suspect that the witness may have been observing the high-altitude, helium-filled balloon, which was reported to have been launched out of Ft. Sumner, earlier that day, Saturday, September 13, 2014. PD))