Waht are the two groups of planets?

Question

please also give their characteristics....

thanks 4 helping me.....

iii_tRoyeLa_iii

Answer 1

well, there are mutiple classifications of planets, such as plutoid, brown dwarf, dwarf planet, etc. and there are also types of planets.

if you are refering to "types" then there are two main types that every observed planet can fall underneath.

a terrestrial planet- one that is a rocky planet, and made of elements in the solid form.

good examples are:

mercury

venus

earth

mars

pluto

-or-

gass planets- planets made out of elements in either the gaseous or the liquid form.

good examples are:

jupiter

saturn

uranus

pluto

Answer 2

Not sure what you mean- there are really three- the rocky inner ones (Mercury, Venus-yes we know it's red hot and smothered with noxious gases but there is a solid core, Earth and Mars) , the gas giants (Jupiter and Saturn) and the icy outers (Neptune Uranus and oops! Pluto isn't a planet any more which means I've missed one of the new ones. Someone can fill in the minor details!

Ah! Ceres is in the asteroid belt between Mars and Jupiter.  Incidentally the reason that Jupiter and Saturn are gas giants and not ice ones is not only their relative proximity to the Sun but their size and hence their gravitational energy.  In Jupiter's case this accounts for about 1/3 of its heat-the rest obviously coming from the Sun

as ever correction needed-Ceres is, like Pluto considered one of the dwarf planets.  Wikipedia's article is good for this:

http://en.wikipedia.org/wiki/Solar_syste...

Answer 3

Not sure what you mean- there are really three- the rocky inner ones (Mercury, Venus-yes we know it's red hot and smothered with noxious gases but there is a solid core, Earth and Mars) , the gas giants (Jupiter and Saturn) and the icy outers (Neptune Uranus and oops! Pluto isn't a planet any more which means I've missed one of the new ones. Someone can fill in the minor details!

Ah! Ceres is in the asteroid belt between Mars and Jupiter. Incidentally the reason that Jupiter and Saturn are gas giants and not ice ones is not only their relative proximity to the Sun but their size and hence their gravitational energy. In Jupiter's case this accounts for about 1/3 of its heat-the rest obviously coming from the Sun

Answer 4

Depends on which way you class them.

In our solar system, there's the inner planets before the asteroid belt, and the outer ones after it. You could also class planets in our solar system as smaller, rocky ones, or as "gas giants".