Question

9: astronomical objects
ses used to find new astronomical objects
at prevents astronomers from directly viewing many planets orbiting other stars?
a. the planets are too far away.
b. the planets are not reflecting light from the stars.
c. the planets are too small.
d. the planets are covered up by the stars.
check answer

Explanation:

To determine the correct answer, we analyze each option:

• Option a: Planets orbiting other stars are extremely distant, making direct viewing difficult as the light from them is faint and hard to detect against the brightness of their host stars.
• Option b: Planets do reflect light from their host stars, so this is incorrect.
• Option c: While size is a factor, the primary issue is the vast distance, not just size alone.
• Option d: Planets are not "covered up" by stars in a way that prevents viewing; the star's brightness overwhelms the planet's reflected light, but it's not a physical covering.

So the main reason is the great distance.

Answer:

a. The planets are too far away.