which planet is actuallya double planet?

Answer 1

Before it was renamed as a dwarf planet, Pluto was considered a double planet since its moon, Charon, is almost the same size as Pluto. The only planet/moon combination that comes close now is the earth and the moon.

Answer 2

Well, if I recall the definition correctly (that the center of mass is not inside either planet/moon), then right now none. When Pluto was still a planet (before it was recently demoted), I believe it and it's moon Charon were considered a double planet because their center of mass was not inside either body, but between them (it's worth pointing out that moon's orbit around the center of mass of the moon/planet system, with planets also orbiting around this point, though generally they move a lot less).

As to the Earth and Moon, by this definition, though the Moon is unusually large, the Earth-Moon system is technically not a double planet system because the center of mass between the Moon and Earth is inside the Earth.

Answer 3

The earth has been called a double planet since the moon is so large in comparison to it (1:4). No other planet, except Pluto (which isn't a planet anymore) has moons so large in comparison to itself (that we know of).

Answer 4

Pluto and Charon Were considered to be a double planet, but you have to keep in consideration that Pluto is no longer a planet.

Answer 5

In many books you will read that because of the big mass of our Moon compared to the Earth's, they form a double planet. Actually, we shouldn't say that the Moon spins around the Earth but instead that both bodies spin around their mutual centre of mass (which is still inside the Earth but does not coincide with the Earth's centre, mind you!)

Answer 6

You could say that about Earth or Pluto, but Pluto is not a planet.

Answer 7

i dunno maybe pluto and charon?