What Are The 4 Classifications Of Exoplanets?
What Are The 4 Classifications Of Exoplanets? So far scientists have categorized exoplanets into the following types: Gas giant, Neptunian, super-Earth and terrestrial. What are the 4 main criteria used to identify a planet? In its declaration the IAU defined a planet as an object which 1) orbits the Sun, 2) is massive enough to