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Forum » SpaceEngine » Feedback and Suggestions » An absence of terrestrial planets with a middling density (Why aren't there any?)
An absence of terrestrial planets with a middling density
GoogolplexbyteDate: Sunday, 10.04.2016, 19:34 | Message # 1
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I was doing a survey of terrestrial planets of similar radius to Earth, and I noticed that there's almost no terrestrial planets with density between 4.2 & 5.4 g/cm^3 :



There's 1 when I'd expect 10-20 & it has a density of 4.2014 g/cm^3.

I went into the star browser and used the filter to find any objects around earth's diameter with masses that would correspond with those densities and nothing [I used 12680km - 12800km & 0.7722 Earths - 0.9652 Earths].

This is strange as Venus is a planet very similar to Earth size with a density in that range [5.2 g/cm^3] and Earth itself is only just above that range at 5.5g/cm^3.

My guess is there's an issue making pure silicate planets [planets with <5% iron & water] as that seems to be the density range that corresponds to those sort of planets.

Was excluding these sorts of planets intentional?

Also there might be another gap in the 6.6 to 8.4 g/cm^3 range but that might just be a sampling error.
 
Forum » SpaceEngine » Feedback and Suggestions » An absence of terrestrial planets with a middling density (Why aren't there any?)
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