Tenebris is 1.1x the size of Earth, and is last out of 10 planets to orbit the star Itoa, which is 1.4x the size of the Sun. Itoa is a part of the Laplace Star System. Tenebris has one moon, Nihilum, which is 1.2x the size of The Moon, and has absolutely nothing on it. Not one drop of water, not one mountain, not one volcano and no atmosphere. Itoa is a blue star, which is the hottest kind of star.