Re: conplaneteering
| From: | Mark J. Reed <markjreed@...> |
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| Date: | Saturday, February 12, 2005, 15:18 |
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On Sat, Feb 12, 2005 at 04:07:16PM +0100, Jörg Rhiemeier wrote:
> What are you going to do with that planet? If you want an Earthlike
> planet with nitrogen-oxygen atmosphere and lots of life on it,
> forget it! A star with about 7.5 times the mass of the Sun has
> a very short lifespan (only a few million years), which means
> that the planet doesn't have enough time to evolve an advanced
> biosphere before the star goes bust. Your star would go supernova
> before the planet has formed a solid crust.
I'm well aware. Nevertheless, this particular star does have such a
planet - an artificial construct. As to why anyone looking to recreate
Earthlike conditions would go to the trouble of building a planet in a
B3 solar system rather than populating an existing planet in a G2 system
somewhere else . . . well, that's a bit of a mystery. :)
Another question is why the inhabitants, who are descended from
Earthlings, haven't been fried by the massive amounts of UV such a star
puts out relative to the Sun. I'm guessing either selective
breeding/genetic engineering to improve their resistance to UV
radiation, or a seriously thick ozone layer.
-Marcos