double planet

It's not stretching things much to say that we live on one half of a double planet.

He returned his attention to the double planet system.

A common proposal for a double planet is a system where the center of mass lies outside the primary.

The next thing he encountered was a bit of a surprise-a double planet.

That they are a double planet apparently enveloped in a single atmosphere.

Though this place had possibilities, the primary of the double planet had more.

There is no observational data on the numbers of 'double planets' in other planetary systems.

There has been debate on where to draw the line between a double planet and a planet-moon system.

The Pale One is either a large moon or a double planet.

Rocheworld itself is a double planet in which the two elements are close enough that they share an atmosphere.

Perhaps in other stellar systems with a double planet, a greater equal- ity is more usual.

Rathe and Home are planets which form a double planet system where each keeps the same face towards the other.

Though the Earth and the Moon can be regarded as a double planet system this is not an association of twins.

Under this definition, the Earth-Moon system is not a double planet.

Being the larger body of a double planet system, Urras is covered by oceans and continents.

You could almost think of Pluto and Charon as a very tiny double planet system.

Many astronomers refer to our Earth Moon pairing as a double planet.

In order to restore a night-day cycle, Pournelle created a double planet.

A double planet of resonant beauty in the host of constellations.

Also, several tiny moons discovered since Asimov's argument would qualify as double planets.

The second change was a redrawing of the planetary definition in the case of a double planet system.

This is a double planet system.

Note that this definition of "double planet" depends primarily on the two-body structure's distance from the Sun.

We would then have been a truer double planet than even Pluto and Charon are.

She drew a circle with a half-million-kilometer radius around the double planet and directed Bill to aim for the arc.