Question

The Nice model concerns the migration history of these objects. A 2016 paper led by astronomer Mike Brown hypothesized the existence of one of these objects. In 2006, the IAU stated that these objects must be nearly spherical in shape and also have "cleared their neighborhood". Ancient Greek astronomers called these objects "wanderers". For the point, name this class of objects that, within our solar system, no longer includes Pluto.

Answer 1

The class of objects being referred to in this question are dwarf planets, which include Pluto.

Step-by-step explanation:

The class of objects being referred to in this question are dwarf planets.

The Nice model discusses the migration history of dwarf planets, which are celestial bodies that orbit the Sun but are not large enough to clear their orbit of other debris.

In 2006, the International Astronomical Union (IAU) defined a set of criteria for objects to be classified as dwarf planets, which includes being nearly spherical in shape and having not cleared their neighborhood.

Pluto, which used to be considered a planet, is now classified as a dwarf planet based on the IAU's definition.

Learn more about Dwarf planets