Vectra is a typical hydrogen-helium gas giant with traces of methane and sodium in its atmosphere. The heat of the star Gorgon is slowly blasting away the gas giant's massive atmosphere, which is visible as a long, dim tail that trails behind the planet.
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Camaron is a terrestrial world with a thin atmosphere of carbon dioxide and argon. The surface is scorching hot, primarily composed of iron with deposits of nickel. Like Wuo, Camaron is tide-locked to the blue giant, forever "looking into the face of the Gorgon".
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A standard hydrogen-helium gas giant, the methane in Sharblu's atmosphere gives it an azure hue. The crew which initially surveyed the system (during Earth's 17th century) named Sharblu after a then-popular soprano. The singer was renowned for her unusual skin tone, which was quite similar to that of the planet.
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Orbiting at an unbelievable distance of 710 AU (over 66 billion kilometers) from Gorgon, Slekon is a huge gas giant, with an atmosphere tainted by methane and chlorine.
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Wuo is a terrestrial planet only known from scan data picked up by unmanned probes. Though over 76 AU from the blue giant Gorgon, temperatures in Wuo's orbit are still dangerously high. Only ships with very powerful heat radiating systems can venture that deep into the system. Fortunately, Wuo is not a terribly interesting world. It has a thin atmosphere of nitrogen and methane, and the scorching surface is mainly composed of alumina with deposits of platinum. The world is tidally locked to Gorgon, leaving the sunward side a scorched and irradiated wasteland, and the dark side frigid and ice-crusted.
The system is named after the gorgons of Greek mythology. Medusa, who was slain by Perseus, is the best known of the three named gorgons. The ancient stories speak of Medusa transforming men into stone when they gazed directly at her. This is reminiscent of how the tidally-locked planets of the system, Wuo and Camaron, have the side that is facing Gorgon perpetually scorched, with the opposite side being completely frozen, thus making colonization impractical at best. Gorgon is classified as a B-type star.