An Asteroid Belt Has Been Discovered Around the Star Zeta

question 2

Multiple Choice

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.

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