Double planet
Double planet
Binary system where two planetary-mass objects share an orbital axis external to both.
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Readers' pathsAug 2026 – Oct 2026
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Charon (moon)
Largest natural satellite of Pluto.
9.3%
Dysnomia (moon)
Moon of Eris.
6.2%
Orbit of the Moon
The Moon's circuit around Earth.
5.8%
Moon
Natural satellite orbiting Earth.
5.4%
IAU definition of planet
2006 International Astronomical Union definition.
4.8%
Eris (dwarf planet)
Most massive dwarf planet.
4.7%
Pluto
Largest dwarf planet in the Solar System.
4.5%
Giant-impact hypothesis
Hypothesis of the formation of the Moon.
4%
Satellite system (astronomy)
Set of gravitationally bound objects in orbit.
3.8%
Barycenter (astronomy)
Center of mass of multiple bodies orbiting each other.
3.7%
Readers come from
Share of the 2,950 readers arriving from another article
Pluto
Largest dwarf planet in the Solar System.
21%
Moons of Pluto
Natural satellites orbiting Pluto.
17%
Charon (moon)
Largest natural satellite of Pluto.
5.8%
Moon
Natural satellite orbiting Earth.
5.3%
Orbit of the Moon
The Moon's circuit around Earth.
5.1%
Planet
Large, round non-stellar astronomical object.
4.5%
Natural satellite
Astronomical body that orbits a planet.
4.2%
Dwarf planet
Small planetary-mass object.
2.8%
Satellite system (astronomy)
Set of gravitationally bound objects in orbit.
1.5%
120347 Salacia
Possible dwarf planet.
0.98%