a planet with a moon large enough to be considered a planet, were the planet not there, having a substantial portion of the system's overall mass.
a pair of planemos in orbit around each other, where the barycenter of their orbits lies outside of both planemos, which in turn is in orbit about a star.
a pair of planemos in orbit around each other, where the barycenter of their orbits lies outside of both planemos.
a planemo with a moon large enough to be considered a planemo, having a substantial portion of the system's overall mass.
In astronomy, double planet and binary planet are informal terms used to describe a binary system where both objects are of planetary mass. Though not an official classification, the European Space Agency has referred to the Earth–Moon system as a double planet. The IAU General Assembly in August 2006 considered a proposal that Pluto and Charon be reclassified as a double planet, but the proposal was abandoned. There are also double minor planets, such as binary asteroids 90 Antiope and binary Kuiper belt objects 79360 Sila–Nunam and 1998 WW31.
The numerical value of double planet in Chaldean Numerology is: 8
The numerical value of double planet in Pythagorean Numerology is: 1
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"double planet." Definitions.net. STANDS4 LLC, 2017. Web. 18 Oct. 2017. <http://www.definitions.net/definition/double planet>.