Suppose the Hubble Space Telescope discovers a series of planets with the following characteristics moving around a star that resembles our Sun: spherical,solid surfaces; mean densities about four times that of water; radii about 4000 km; low-density atmospheres.How would these planets be classified in comparison with our solar system?

Question

Quizplus · Accepted Answer

The characteristics described are similar to those of the terrestrial planets in our solar system, such as Earth, Mars, Venus, and Mercury. The low-density atmospheres could indicate that these planets have thin atmospheres, like Mars, or no atmosphere at all, like Mercury. Therefore, these planets would be classified as terrestrial planets.

Suppose the Hubble Space Telescope Discovers a Series of Planets