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Post by The Astronomer on Apr 20, 2017 11:08:00 GMT
There is a recent news about a newly-discovered planet LHS 1140b. It is said to be one of the best place to look for alien life.
From Wikipedia (20 Apr 2017): Any thoughts?
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Post by Rocket Witch on Apr 20, 2017 12:40:34 GMT
I swear every month there's a new "best place to look for alien life" since they got that new method for finding planets. That's great, but what are they learning about these places other than "they exist"?
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Post by Enderminion on Apr 20, 2017 12:43:38 GMT
Rocket Witch Atmosphere, by the diffraction of light from the star also if their is not much radiation... will there be less evolution because less mutation?
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LHS 1140b
Apr 20, 2017 12:57:52 GMT
via mobile
Post by samchiu2000 on Apr 20, 2017 12:57:52 GMT
F♡♡♡ing red dwarf again...
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Post by The Astronomer on Apr 20, 2017 15:33:34 GMT
Rocket Witch Atmosphere, by the diffraction of light from the star also if their is not much radiation... will there be less evolution because less mutation? Red dwarfs have intense radiation. F♡♡♡ing red dwarf again... OMG! It's a f**king samchiu the red dwarf hater again!!!
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Post by samchiu2000 on Apr 20, 2017 16:16:43 GMT
The Astronomer I don't like red dwarf stars because they aren't really a suitable place for habitable planet because they often emit large flare, especially during it's early age, which wipe out the atmosphere of it's planets in the habitable zone, if the planet isn't a gas giant or mini neptune... And i wouldn't be happy unless someone find a planet with radius ~1.15 earth radius OR mass of ~1 to 1.5 earth mass orbiting a orange or yellow star...
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Post by The Astronomer on Apr 20, 2017 16:47:35 GMT
The Astronomer I don't like red dwarf stars because they aren't really a suitable place for habitable planet because they often emit large flare, especially during it's early age, which wipe out the atmosphere of it's planets in the habitable zone, if the planet isn't a gas giant or mini neptune... And i wouldn't be happy unless someone find a planet with radius ~1.15 earth radius OR mass of ~1 to 1.5 earth mass orbiting a orange or yellow star... Talk about Kepler-186f, then. Apparently Earthlike planets are not the most habitable planets . . .
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Post by alias72 on Apr 21, 2017 1:08:56 GMT
The Astronomer I don't like red dwarf stars because they aren't really a suitable place for habitable planet because they often emit large flare, especially during it's early age, which wipe out the atmosphere of it's planets in the habitable zone, if the planet isn't a gas giant or mini neptune... And i wouldn't be happy unless someone find a planet with radius ~1.15 earth radius OR mass of ~1 to 1.5 earth mass orbiting a orange or yellow star... Talk about Kepler-186f, then. Apparently Earthlike planets are not the most habitable planets . . . they are for us!
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Post by newageofpower on Apr 21, 2017 1:38:48 GMT
Talk about Kepler-186f, then. Apparently Earthlike planets are not the most habitable planets . . . they are for us! He's being sarcastic towards samchiu.
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Post by subunit on Apr 21, 2017 5:27:42 GMT
I swear every month there's a new "best place to look for alien life" since they got that new method for finding planets. That's great, but what are they learning about these places other than "they exist"? They're learning how to write the porniest press releases to keep the funding flowing for basically useless projects.
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Post by Rocket Witch on Apr 21, 2017 5:43:51 GMT
They're learning how to write the porniest press releases to keep the funding flowing for basically useless projects. Oh, good old government science. I know where this is going. Gotta study exoatmospheres for evidence of global warming so that can continue to be used as a political bludgeon. Apparently Earthlike planets are not the most habitable planets . . . Places like Europa, Enceladus, and the Charon-Pluto system are probably more conducive to life overall. Complex life may require an earthlike planet though. More likely it would be a moon around a gas giant instead of a super earth, since tidal heating extends the habitable zone further away from the star and its radiation.
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Post by The Astronomer on Apr 21, 2017 6:27:13 GMT
Superhabitable PlanetMass: approximately 2M⊕. Radius: to maintain a similar Earth density, its radius should be between 1.2 and 1.3R⊕. Oceans: percentage of surface area covered by oceans should be Earth-like but more distributed, without large continuous land masses. The oceans should be shallow; the light then will penetrate easier through the water and will reach the fauna and flora, stimulating an abundance of life down in the ocean. Distance: shorter distance from the center of the habitable zone of the system than Earth. Temperature: average surface temperature of about 25 °C (77 °F).[12] Star and age: belonging to an intermediate K-type star with an older age than the Sun (4.5 billion years) but younger than 7 billion years. Atmosphere: somewhat denser than Earth's and with a higher concentration of oxygen. That will make life larger and more abundant.
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Post by thorneel on Apr 21, 2017 9:13:06 GMT
I wonder if people still talk about Earth-like exoplanets in CoaDE.
"So, what about that one? It looked pretty good on preliminary studies." "Just got the result: another Earth-like." "Oh." "Yeah. Sorry." "Well, better luck next time..."
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LHS 1140b
Apr 21, 2017 9:20:03 GMT
via mobile
Post by samchiu2000 on Apr 21, 2017 9:20:03 GMT
The Astronomer I don't like red dwarf stars because they aren't really a suitable place for habitable planet because they often emit large flare, especially during it's early age, which wipe out the atmosphere of it's planets in the habitable zone, if the planet isn't a gas giant or mini neptune... And i wouldn't be happy unless someone find a planet with radius ~1.15 earth radius OR mass of ~1 to 1.5 earth mass orbiting a orange or yellow star... Talk about Kepler-186f, then. Apparently Earthlike planets are not the most habitable planets . . . Kepler 168 is large enough to prevent planets in the habitable zone tidally locked, but it is completely possible that the atmosphere of Kepler 168f is already wipe out by the star flare during it's early age...
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LHS 1140b
Apr 21, 2017 9:22:10 GMT
via mobile
Post by samchiu2000 on Apr 21, 2017 9:22:10 GMT
If you are look for alien life only, well maybe red dwarf isn't a problem, and you actually don't need to look that far as you may find life at Europa ocean floor.
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