variantar

Variantar is a fictional terrestrial exoplanet used in speculative astronomy and science fiction to illustrate planet-scale processes and habitability. It is not a real world, though its canonical profile recurs across works that treat exoplanet climates and ecology.

In the most common portrayal, Variantar orbits a K-type main-sequence star in the Veridian system, about 40 light-years from Earth. The orbit is near circular with a period close to one Earth year, yielding moderate seasons.

The planet has a mixed geography with sizable oceans and several continental landmasses. Its axial tilt is about 23 degrees, producing temperate seasons and regional climatic variation.

The atmosphere is described as nitrogen-oxygen with surface pressure near 1 bar. Climate is tempered by ocean circulation; geological activity includes plate tectonics and intermittent volcanism that influence long-term climate cycles.

In fictional depictions, Variantar hosts diverse Earth-like biota, including forests, grasslands, and coastal ecosystems. There is no universal consensus on native intelligent life; several narratives depict advanced civilizations colonizing or studying the world.

Variantar has been used as a teaching and world-building example for exoplanet habitability models and climate simulations, as well as in novels and games exploring planetary exploration.

The name Variantar is a constructed toponym; authors often interpret it as a blend of evocative roots rather than a reference to any real place.