Terrestrial Vs. Jovian Planets
The word planet is derived from the ancient Greek word planetes, or “wanderers.” Though the visible planets of that time did appear to be wandering in the sky, the science of Astronomy has broadened this term as well as our understanding of what, in fact a planet is. By modern definition, “planet” is described as a celestial body other than a star, which orbits a star. Our Solar System orbits the center of our home galaxy, the Milky Way, and has a rich and varied structure. It consists of the Sun, four small inner planets, four outer gas giant planets, and the distant, but small planet Pluto. These planets do not wander erratically; instead they are inherently orbiting the Sun. The delineation of these planets do not end at their identification, rather they are subcategorized as being either Terrestrial Planets or Jovian Planets, with the notable exception of Pluto, which is neither.
Terrestrial Planets are the four innermost planets closest to the sun, respectively......
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