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Thread: Goldilocks Planet Found Orbiting Alpha Centauri C

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    Anachronism "Friend of Germanics"
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    Quote Originally Posted by The Horned God View Post
    My mistake, apologies.

    However, the reports are that the planet is at the distance from its star where liquid water could exist on it surface, and therefore is considered to be in the habitable zone.

    If the planet is large enough as it seems to be, and has a strong magnetic field, as it could well have,then I don't see why life couldn't exist there.

    I've edited the thread to correct the error. Thank you for pointing that out.
    It's possible some form of life could be there, but when a star's spectrum is too far different than the Sun's, that life might take on much different qualities, if it's even possible at all. Here's an article addressing this:

    http://en.wikipedia.org/wiki/Habitab..._dwarf_systems

    Quote Originally Posted by Catterick View Post
    Find me one around Sirius. Then watch the conspiracy theorists go crazy.
    Sirius might not host habitable planets, either, for a very different reason. A-type, B-type, and O-type stars are just too hot and short-lived, and emit enough UV rays to likely kill anything we can conceive of as life. The short lifespan of these stars is the real factor though... Sirius is a main-sequence star, but is only 230 million years old. Compare this to the Sun at 4.5 billion years; think of how long life had to evolve to the reach the point where we are now.

    One of the things I always chuckle at is Star Trek's Rigel system. In their little fiction, there are at least 12 planets around Rigel, most of which are habitable. In terms of having habitable planets, the real Rigel is one of the least hospitable stars imaginable. It's only 8 million years old, and super-massive, being about 21 times the mass of our Sun. It is also more than 80 times the Sun's diameter and twice its surface temperature. Brightness in the visible spectrum is about 120,000 times that of the Sun. It is also an Alpha Cygni variable, which means it expands and contracts. Even a planet orbiting at an extreme distance from this star would be subject to chaotic conditions which would likely prove deadly to anything situated there. Then there is the impending Type II supernova which should occur between now and a few million years from now. Fun stuff.


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    Hundhedensk "Friend of Germanics"
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    Quote Originally Posted by Ingvaeonic View Post
    Now, that's interesting. We may not be alone. We could have bacteria as neighbours.
    Or the "others" may be so advanced that they view us as bacteria

    If only our civilization can get their act together then we'll one day be among the stars. Planet Germania sounds good.

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