How to design a super-earth that is 80,000 km in circumference?
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My question is the following:
How could I design and/or justify a habitable planet that is 80,000 km in circumference?
The planet should:
- Be habitable
- Have a gravity similar to earth's
- Have active plate tectonics
- Have a sidereal rotation of 24 hour
The use of internal god-made mega structures is allowed, or even entire layers of the planet can be made of devine-ium.
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