lankuilla

Lankuilla is a hypothetical planet that was proposed by American astronomer Clyde Tombaugh in the 1930s. Tombaugh, who is also known for his discovery of Pluto, suggested the existence of this planet as a means to explain the irregularities in the orbits of the outer planets in the solar system. According to his theory, Lankuilla would have a mass that is sufficient to influence the orbits of the outer planets, but not so massive that it would be detectable by astronomers at that time.

Tombaugh's proposal was based on his observations of the orbits of Neptune and Uranus. He noticed that these two planets were moving at a slightly different rate than expected, suggesting that there may be an undiscovered planet with a significant mass affecting their orbits. He suggested that Lankuilla would be a planet located at a distance of about 7 astronomical units (AU) from the Sun, which is roughly twice the distance of Neptune from the Sun.

However, despite Tombaugh's proposal, Lankuilla was never detected by astronomers, and its existence was eventually found to be not necessary to explain the irregularities in the orbits of the outer planets. The discovery of other planets in the solar system, such as Pluto, Eris, and Haumea, has also provided alternative explanations for the irregularities in the orbits of the outer planets. Today, Lankuilla is no longer considered a credible planetary candidate and is largely remembered as a historical footnote in the development of modern astronomy.