The planet Thetis VIII and the language of its sea-going folk was first shortly mentioned by Cyril M. Kornbluth (*1924 †1958 (+ 70 = 2028)) in January in his story That Share of Glory.
Young Alen, one of a thousand in the huge refectory, ate absent-mindedly as the reader droned into the perfect silence of the hall. Today's lesson happened to be a word-list of the Thetis VIII planet's sea-going folk.
"Tlon—a ship," droned the reader.
"Rtlo—some ships, number unknown.
"Long—some ships, number known, always modified by cardinal.
"Ongr—a ship in a collection of ships, always modified by ordinal.
"Ngrt—first ship in a collection of ships; an exception to ongr."
A lay brother tiptoed to Alen's side. "The Rector summons you," he whispered.
His story does not contain any further information of this planet and language.
In December 2022, the first version of a word analyzer and a concise grammar of the Segof language was published by Pavel A. da Mek.
It may surprising than in the zone of life is eighth planet. In our planetary system, the habitable Earth is the third planet, and our eighth planet is Neptune in the distance 30 AU from our Sun (aphelion 30.33 AU, perihelion 29.81 AU) and average temperature -200 °C (1 bar level: 72 K = −201 °C, 0.1 bar: 55 K = −218 °C). Were the Thetis VIII in the same distance from Thetis as Neptune from Sun, then Thetis would shine 900 times more than our Sun which has the absolute magnitude 4.83. So we shall search for a star with the absolute magnitude -2.56. If it is a star if the main sequence, then is spectral class is B3.
In other words, because the luminosity of Sun 3.828×10^26 W, the luminosty of Thetis is 3.4452×10^29 W (344.52 ZW).