research paper for Pluto

When discovered by Clyde Tombaugh in 1930, Pluto was considered the ninth planet in the Solar System. But, at the end of the 20th century, other fairly similar objects were discovered, including Eris, who exceeded him slightly in size. It quickly became clear that these small bodies, of which there is still much to be discovered, did not present the characteristics allowing them to be classified among planets in their own right and the International Astronomical Union (IAU) was led to redefine the concept. planet in August 2006.

Thus was created the category of dwarf planets, which now includes Pluto, Eris and Ceres. In its wake, the UAI logically decided to honor Pluto by making it the prototype of a new category of transneptunian objects: the plutoids.As a result of these changes, the Solar System saw the number of its planets reduced to eight. As for Pluto, it was assigned the number 134,340 in the catalog of minor objects.

Ywd067 Ywd067 · Answer 2 · 2020-09-28T16:25:21+02:00

Answer:Pluto

Explanation:When discovered by Clyde Tombaugh in 1930, Pluto was considered the ninth planet in the Solar System. But, at the end of the 20th century, other fairly similar objects were discovered, including Eris, who exceeded him slightly in size. It quickly became clear that these small bodies, of which there is still much to be discovered, did not present the characteristics allowing them to be classified among planets in their own right and the International Astronomical Union (IAU) was led to redefine the concept. planet in August 2006.

Thus was created the category of dwarf planets, which now includes Pluto, Eris and Ceres. In its wake, the UAI logically decided to honor Pluto by making it the prototype of a new category of transneptunian objects: the plutoids.As a result of these changes, the Solar System saw the number of its planets reduced to eight. As for Pluto, it was assigned the number 134,340 in the catalog of minor objects.