An asteroid belt has been discovered around the star Zeta Leporis.How were these comets discovered?
A) The asteroids were imaged directly by the Hubble Space Telescope.
B) A ring of hot dust was discovered around the star by spectroscopy, and collisions among asteroids were inferred as the cause.
C) The gravitational effects of the asteroids have created an off-center disk of dust and gas around the star.
D) The gravitational effects of the asteroids cause the star to wobble slightly in its proper motion.

Question

Quizplus · Accepted Answer

The asteroids were not directly imaged by the Hubble Space Telescope, nor did their gravitational effects cause a wobble in the star. Instead, a ring of hot dust around the star was discovered through spectroscopy, and collisions among asteroids were inferred as the cause.

An Asteroid Belt Has Been Discovered Around the Star Zeta