Saula (fictional planet) Saula (fictional planet) Saula is a fictional planet described in ""An Attempt to Escape" ("Попытка к бегству")" by Boris and Arkady Strugatsky. This planet is a part of the so-called Noon Universe and presents a world in an early feudalistic stage (opposite to e.g. late feudalism of Arkanar). The planet was named after Saul (Savel) Repnin, one of the space explorers who discovered it in 2141 AD. Saula is the second planet (out of four) of EN-7031 solar system, about one and a half times further from its sun than Earth is from ours. The day and night cycle on
Eris (dwarf planet) decide the issue. This was announced as the IAU's "Definition of a Planet in the Solar System," adopted on 24 August 2006. At this time, both Eris and Pluto were classified as "dwarf planets," a category distinct from the new definition of "planet." Brown has since stated his approval of this classification. The IAU subsequently added Eris to its Minor Planet Catalogue, designating it "(136199) Eris." Eris has an orbital period of 558 years. Its maximum possible distance from the Sun (aphelion) is 97.65 AU, and its closest (perihelion) is 37.91 AU. It came to perihelion between 1698 and 1699,