Atmosphere and geographyEdit
Graktan was considered likely to be Earth-like due to its orbital position. Its air density is comparable to Earth's and is breathable. Graktan appears blue from orbit, with a light orange sky, and thick yellow- and orange-colored clouds. Surface terrain includes mountains, oceans, and lakes.
In 2267, Graktan was first explored by the Federation starship USS Enterprise. A disastrous first contact occurred when the class F shuttlecraft NCC-1701/3 and NCC-1701/5 were wrecked by a planetary defense weapon. Shocked and embarrassed when he realized the landing party were not enemy Themerians, leader Lektor apologized and offered them the complete hospitality and freedom of the planet. But in the meantime, the weapon had also been fired at the Enterprise, and a full rescue operation was required to save the starship from burning up in the star. (TOS comic: "Creeping Death")