Question

The planets are also known as ...........​

Answer 1

In modern astronomy, there are two primary conceptions of a 'planet'. Disregarding the often inconsistent technical details, they are whether an astronomical body moves like a planet (that is, whether its orbit and relationship to other bodies are similar to those of the classical planets) or whether it looks like a planet (that is, whether it is round or has planetary geology). These may be characterized as the orbital definition and the geophysical definition.

Answer 2

Answer:

Planets are also called terrestrial and jovian planets.

Explanation:

Terrestrial planets: Mercury, Venus, Earth, and Mars are known as terrestrial planets because their surfaces are compact and rocky, similar to Earth's terra firma.

• The terrestrial planets are the solar system's four innermost planets.
• None of the terrestrial planets have rings, but Earth does have trapped radiation bands, which are detailed further below.
• Only Earth has a significant planetary magnetic field among the terrestrials.
• There are localised regional magnetic fields over Mars' and Earth's moon's surfaces, but no global magnetic field.

Jovian planets: Jupiter, Saturn, Uranus, and Neptune are referred to as Jovian (Jupiter-like) planets because they are all massive in comparison to Earth and have a gaseous composition similar to Jupiter's (mainly hydrogen, with some helium and trace gases and ices).

• The Jovian planets are known as "gas giants" because they are largely comprised of gas, even though some or all of them have small solid cores.
• All of them have large planetary magnetic fields, rings, and a large number of satellites.

Hence, planets are grouped and termed terrestrial and jovian planets.

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