planetaar
Planetaar is a term that has appeared in various fictional contexts, often referring to a celestial body with characteristics similar to a planet but with specific, often unique, attributes. In some science fiction narratives, "planetaar" might denote a planet that is artificially constructed or terraformed to such an extent that it has become a manufactured world. These constructs can vary greatly in scale and purpose, from massive space stations housing entire populations to worlds meticulously engineered for specific ecological or industrial functions.
The concept can also extend to planets with unusual geological or atmospheric phenomena that set them apart