Trivia

Hard

When Pluto Lost Its Designation As A Planet It Also Lost Its What?

Smithsonian Display
Moons
Planned Probe Mission
Name

Answer: Name

In 2006, the celestial object previously known as the ninth planet in our solar system, Pluto, was officially demoted. Although the announcement by the International Astronomical Union left a lot of people scratching their heads and more than a few declaring, “It was a planet when I learned the solar system as a lad and it’s going to stay a planet!” the IAU actually had a rather compelling case. At the time the object was discovered in 1930, it looked unique and planet like. After nearly a century of astronomical study since, however, it’s clear that the object we called Pluto is but one of many numerous icy objects orbiting the Sun at similar distances (including another that is bigger than Pluto).

Part of the demotion process from planet to dwarf planet, while strictly a matter of bookkeeping and consistency in records, has a bitter twinge to it you’d expect to find in a tragic story: Pluto was stripped of its name and given a number like all the other asteroids, icy bodies, dwarf planets, and other chunks of non-planetary objects rocketing around the solar system. Pluto was reclassified and renamed with the designation 134340 along with all of its moons, also stripped of their names and reclassified as 134340 (I-V).

Despite the demotion and the stripping of title, Pluto lives on: members of the very class of planet it belongs to, that of the trans-neptunian dwarf planet, are referred to as Plutoids.

Trivia

Hard

Pokémon Was Inspired By What From The Creator’s Childhood?

Trivia

Hard

The Deadliest Natural Disaster In U.S. History Was A?

Trivia

Hard

The Game Chinese Checkers Originated In What Country?

Trivia

Hard

Which Computer Was The First To Ship With A Mouse?

Trivia

Hard

Which Of These Is Considered The Most Destructive Invasive Species In The United States?

Trivia

Easy

The Land Animal With The Largest Eyes Is The?

Trivia

Hard

The Most Widely Simulcast Television Show Of All Time Was An Episode Of?

Trivia

Easy

“Peace Lines” Are An Urban Architectural Feature Found Throughout?

Trivia

Easy

Which Animal Carries Its Favorite Tools With It?

Trivia

Easy

Which Visible Color Has The Highest Frequency?