Planet X is meant to be the Greek letter chi, the 22nd letter of the Greek alphabet. It represents the time, measured as 22 earth years, that would elapse before reaching this planet (from the earth) when traveling at half the speed of light, which is the greatest speed we will ever achieve, according to Isaac Asimov. Now, I dare say that marble head's interpretation of what planet X looks like when seen from a distance of 100,000 kilometers and illuminated by it's parent star Ross 128 is based purely on maniacal imagination and fantastical whimsy and perhaps a few more of those most delightful aspects of mental aberration. If you don't kike it, we can step outside. You use the front door and I'll slink out the back door and we will never speak of it again. Deal?