Mawinor is the second of Tereshkova's outer worlds. It is essentially a rock of unremarkable ores with some deposits of water ice, but no minerals of value. The frozen surface is composed of silica.
Like the gas giant Solmarlon, it is thought that Mawinor formed too close to the Tereshkova stars and was thrown outwards by gravitational effects. Computer models suggest it will be ejected from the system in a few hundred thousand years.