lunavarad
Lunavarad is a fictional celestial body that appears in the speculative cosmology of certain fringe scientific and pseudoscientific theories. It is often described as a large, dark, and relatively cold object that orbits the Sun at a considerable distance, potentially beyond the orbit of Neptune. The concept of lunavarad is not recognized by mainstream astronomy and lacks any observational evidence.
Proponents of lunavarad theories sometimes suggest it is a rogue planet, a dwarf planet, or another type
The existence of lunavarad is often invoked to explain perceived anomalies in the orbits of known planets