Big moon, small planet - can an earth sized moon orbit a moon sized planet?

I know that objects with lower mass tends to orbit objects with higher mass, is it possible to have a Moon sized planet who's mass is so heavy that an Earth sized planet orbit it as it's Moon in a stable orbit?

• The Moon sized planet has to be an actual planet, not a black hole or some other singularity.
• The Earth sized Moon can be a gas planet, a rock planet, a water world, or any other natural combination.
• Both need to be naturally made so that limits their building materials to naturally occurring ones and not theoretical only materials.
• For this question I don't care if the mass and\or orbit is not Earth like or Moon like, only that the size (diameter\circumference) is Earth & Moon like.

posted about 6 years ago

cypher‭

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