The Amor asteroids have orbits that:
A)stay closer to the Sun, on average, than we do.
B)stay out beyond Neptune.
C)stay sixty degrees ahead of or behind Jupiter.
D)cross the orbit of Mars, but not Earth, at perihelion.
E)cross the orbit of Earth at perihelion.

Question

Quizplus · Accepted Answer

Amor asteroids are a group of near-Earth asteroids named after the archetype object 1221 Amor. Their orbits bring them close to Earth, but they do not cross Earth's orbit. Instead, their orbits cross the orbit of Mars at their closest approach to the Sun (perihelion), but they stay outside of Earth's orbit, making option D correct.

The Amor Asteroids Have Orbits That