Sentence examples for multiple planet system from inspiring English sources

It's only the second known multiple planet system.

Second, multiple planet systems are common.

In the case of the known multiple planet systems, for instance, the gravitational tug of one extra planet would disrupt the whole system, scattering all the planets.

Upsilon Andromedae was both the first multiple-planet system to be discovered around a main-sequence star, and the first multiple-planet system known in a multiple star system.

Currie said the system surrounding HD 100546 is a sort of "evolutionary precursor" to HR 8799, the first multiple-planet system to be directly imaged after it was discovered in 2008.

The first observations of multiple-planet systems around other stars have deepened the consternation of astronomers and theorists of planetary dynamics.

The reason astronomers have not sighted more multiple-planet systems, they say, is simply that they have not looked long enough.

That is a tool, they say, that is becoming increasingly valuable for determining the masses of small planets in multiple-planet systems.

That's a total of 171 multiple-planet systems.

No less than one in three of all planets around other stars found by NASA's Kepler space telescope are in multiple-planet systems.

The low expectation for multiple-planet systems was based on the fact that the eight planets in our own solar system do not orbit in exactly the same plane.