Rochelobe

Rochelobe is a fictional terrestrial exoplanet created for educational and narrative purposes. It is described as orbiting a K-type main-sequence star in the Rochelobe system, at an average distance that yields a stable year somewhat shorter than Earth's. The planet is portrayed as a medium-sized world with a rocky interior and a relatively thin atmosphere.

Rochelobe's size and mass give it a surface gravity close to Earth's, allowing for a geologic history similar in some respects to Earth and Mars. The atmosphere is primarily nitrogen with small amounts of carbon dioxide and noble gases, producing an albedo around modest values. The surface features a mix of icy highlands, basaltic plains, and impact craters, with geologic evidence suggesting past tectonic activity and volcanism. A possible subsurface ocean could exist beneath a thick ice shell in polar regions.

The climate is described as variable, with a strong day-night contrast and dynamical atmospheric circulation that moderates temperatures in the terminator zone. Because of the system's dynamics, Rochelobe is often depicted as offering niches for liquid water under ice or in subterranean reservoirs, though surface seas are generally absent in most depictions. Habitability is treated as speculative, with life considered possible only under favorable conditions.

In education and fiction, Rochelobe serves as a case study in exoplanet geology, climate modeling, and habitability assessment. The name combines reference to the Roche lobe concept with a suffix that evokes a classical or enduring tone, and it appears in catalogs and simulations to illustrate planetary processes.