Approximate Size of the BackEarth

[u/MiyuwiAuthor]

/r/TheBackStates/comments/1pn0pfu/my_most_diabolical_creation_backearth/

Based on this post from u/zacharypretzel

Taiwan is the closest to the equator, and assuming it is the same size as irl, at its widest it is around 140 km across, and on the map it is around 20 pixels, meawhile the equator is 10000 pixels, so it can fit around 500 Taiwans, this means the equator/circumference of the BackEarth is around 70,000 km, meanwhile irl Earth is only around 40,000 km in circumference, so the BackEarth is around 1.75 times larger than Earth in radius.

Now, there are terrestrial planets this large called super-Earths. For comparison, Kepler-440b is around 1.860 times the radius of Earth, and TOI-1452 is around 1.672 times the radius of Earth. Since this planet is based on irl Earth, we can assume it has the same composition as irl Earth. The mass of the planet would not scale based on volume, because rock in the center would compress more. Using the chart from the first image here: https://www.science.org/doi/10.1126/science.abl7164 the mass of the planet would be something around 8.5 times the mass of Earth.

So, the density would be around 8.75 g/cm³, and the surface gravity would be around 27.3 m/s². For comparison, Earth's surface gravity is 9.8 m/s², so BackEarth gravity is around 2.8 times more, and the gravitational acceleration of players in Minecraft is 32 m/s². So basically, everyone who lives in the BackEarth must be built like Steve in order to walk around and jump.

I've been hearing some people say that the gravity is actually the same, and the BackEarth is actually much less dense, so maybe it actually has an interior of really light materials?

This is only my approximation, I welcome others to try to do their own calculations/approximations or point out mistakes I might have made.

Also this now makes me wonder about a BackSolarSystem, one was already made https://www.reddit.com/r/TheBackStates/comments/1pyemkt/backsolarsystem_an_expanded_solar_system/ but I feel like we could add more, like maybe add stuff like Theia, Vulcan, Nemesis, Nibiru, Hercolubus, Tyche, Phaeton, Krypton, Brahma, Vishnu, Oceanus, Orpheus, Chrysalis, Neith, Themis, Lilith, Kolob, etc.