SOLAR SYSTEM

Detailed explanation-1: -Eris (minor-planet designation 136199 Eris) is the most massive and second-largest known dwarf planet in the Solar System. It is a trans-Neptunian object (TNO) in the scattered disk and has a high-eccentricity orbit.

Detailed explanation-2: -But which world is the true King of the Kuiper belt, the innermost of the trans-Neptunian objects? It’s not Pluto, the one with the greatest radius, nor Eris, the one with the greatest mass. Instead, Triton-the largest moon of Neptune-has them both beat. Here’s the bizarre story of how.

Detailed explanation-3: -Its orbit is highly eccentric, or elongated, and very tilted. Eris’s orbit is so tilted that some scientists call it a member of the Kuiper belt’s scattered disk rather than of the Kuiper belt itself. The surface of Eris may be covered with white methane ice. Eris has one known moon, Dysnomia.

Detailed explanation-4: -The four largest objects in the Kuiper belt are Pluto, Eris, Haumea, and Makemake. These are the four dwarf planets known to occupy the Kuiper belt. Pluto has a diameter of 1, 476.8 miles, while Eris has a diameter of 1, 445.3 miles.