Tir

Tir is the first planet from Helios and the smallest in the Helios system. It is a rocky planet with a negligible atmosphere and a similar size and surface texture to Utopia’s moon. Despite this, it is over twice as heavy and significantly more dense than the moon due to its high concentration of metals. Tir’s surface is marked by craters and similar evidence of asteroid collisions, with its largest crater, Olvasz Fenns with a diameter of 1,240 km. As the closest planet to Helios, it nearly always appears close in Utopia’s sky to Helios, being most visible at dawn and dusk.

Tir has an extensive history of observation by Utopian civilizations dating back to the first human civilizations. In some cultures, the planet’s close position relative to Helios held a religious significance, for example it was commonly recognized as a good omen if Tir was seen before Helios in pre-christian Jadefall. The name Tir originates from the Meridian Commonwealth, where the planet was named after the ancient god of literacy and rain. The first satellite visitation of Tir was by the Meridian Commonwealth in 1963 and it has since been surveyed multiple times by eight different space programs.

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