Five of the accepted nine.
Four if you only recognise 8 planets of our solar system (as with the International Astronomical Union), since Pluto's reclassification as a Dwarf Planet.
The four inner planets; Mercury, Venus, Earth and Mars. They have a clearly defined `terrain`, whereas the gas giants don't.
Terestial
-terestial-satellite
The gas giants don't have a solid surface like that found on the terrestrial planets. They are also a lot bigger, are further away from the sun and a lot colder because of this. They take a longer time period to orbit the sun.
7 boys 1girl
there is 7 new planets
There are eight planets.
No planets away.
None of the planets are midgets.
There are many other planets in many other galaxies.
Currently there are 353 known extrasolar planets (that is to say, outside of our solar system), but it is unknown how many planets exist in the universe.
there is many