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Results tagged with planet
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user 34443
Questions on astronomical objects orbiting a star massive enough to be rounded, not massive enough to cause fusion, and which have cleared its orbit of planetesimals.
17
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1
answer
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Can the paper narrowing Solar System's barycentre to within 100m help find Planet Nine?
reporting on a paper[1] that claims narrowing the Solar System barycentre to within 100 meters, just outside the sun, and I wonder, could this result help prove or disprove the hypothesis of a massive Planet … “Evidence for a Distant Giant Planet in the Solar System”. The Astronomical Journal, vol. 151, no 2, janeiro de 2016, p. 22. arXiv.org, doi:10.3847/0004-6256/151/2/22. …
- 1,201
4
votes
1
answer
286
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What is the maximum size for a solid celestial body such that it still can be tunneled down ...
But if our planet is too large for this scenario, making it infeasible here, surely there is a lower threshold for mass and size making it actually possible. … So I'd like to know, what's the maximum size for a planet/dwarf planet/asteroid, where would be possible in principle to dig tunnels all the way down to the core, or perhaps even to build some sort of …
- 1,201
14
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1
answer
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Could it be possible to detect planets from stars that went supernova through the resulting ...
To ilustrate it, first let's take the example of a lone star exploding in a unlikely very symmetric spherical nebula:
Now, if the star has a companion planet, I think a bump will be generated in the expansion …
- 1,201