Tuvra

Tuvra is a fictional planet created for science fiction and world-building exercises. It is depicted as part of the Tuvra system, orbiting a yellow-white G-type star at roughly 1.2 astronomical units, with an orbital period near 1.9 Earth years. The planet’s rotation period is about 20 hours and its axial tilt is described as roughly 12 degrees, producing seasons similar to those on early Earth in many canons.

Physically, Tuvra is near Earth-sized, with a radius about 0.95 times that of Earth and a mass around 0.92 Earth masses. Surface gravity is generally cited as just under Earth gravity. The surface features three major landmasses and two large oceans, connected by seaways and punctuated by a central highland belt. A prominent geological feature, the Azure Crater, is often described as a massive impact basin near the equator. An extensive equatorial dune belt is sometimes mentioned as a climatic divider between hemispheres.

The atmosphere is usually described as nitrogen-dominated, with trace oxygen and an average surface pressure close to 0.96 bar. Climate varies by latitude, with temperate zones interspersed with arid regions and periodic monsoonal patterns in some settings. The biosphere is commonly portrayed as hosting microbial life and simple extremophiles, with little to no native multicellular life known in most canons.

Human interaction in the lore ranges from uncontacted frontiers to scattered colonial outposts. Tuvra glass, a crystalline material valued for optics, and silicic sands are cited as notable local resources. The name Tuvra appears across fictional languages within the corpus and is often used in world-building discussions as an example of exoplanetary geography and colonization dynamics.