About 100 trans-Neptunian objects are called plutinos because they have what characteristic in common with Pluto?
A)They are about the same size as Pluto.
B)They have nearly the same semimajor axis as Pluto.
C)They have a large moon like Charon.
D)They share Pluto's orbit around the Sun.

Question

Quizplus · Accepted Answer

Plutinos have nearly the same semimajor axis as Pluto, meaning they share Pluto's unique orbital resonance with Neptune. This characteristic makes them part of a distinct group of trans-Neptunian objects.

About 100 Trans-Neptunian Objects Are Called Plutinos Because They Have