Trappist-1 - did we really search it?

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Profile Raistmer
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Message 1850594 - Posted: 22 Feb 2017, 18:49:23 UTC

In NASA's pressconference there was statement that SETI already listen this system and got no signal.

How much did we really listen it?
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Message 1850595 - Posted: 22 Feb 2017, 18:53:26 UTC - in response to Message 1850594.  
Last modified: 22 Feb 2017, 18:53:39 UTC

IHow much did we really listen it?


Given what we now know to be there, I think the answer must be:
"Not nearly enough."

Hard to starboard on the Robert C. Byrd, mateys. :^)
“Never doubt that a small group of thoughtful, committed citizens can change the world; indeed, it's the only thing that ever has.”
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Message 1850730 - Posted: 23 Feb 2017, 7:48:16 UTC

And Roger the cabin boy :^)
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Message 1850833 - Posted: 23 Feb 2017, 19:12:45 UTC - in response to Message 1850730.  

Does anybody know if there is still non-analyzed data for the Trappist-1 Region left? If this would be the case, maybe the data could be priorized for analyzing?
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Message 1851502 - Posted: 26 Feb 2017, 3:47:21 UTC - in response to Message 1851163.  
Last modified: 26 Feb 2017, 3:52:33 UTC

First of all, spell your word correctly.


Thiss foreum iz yoozed buy peeple fraum awl owever Urth, phor whoom Nglish mae knot bee they're furst langwaje. Sew yew shud bee aybull tew handel erors wihtout caling thm owt awnn itt... att leest thy ar tryng.
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Message 1851511 - Posted: 26 Feb 2017, 4:36:18 UTC
Last modified: 26 Feb 2017, 5:06:28 UTC

I'd also like to know what has been done and what is yet to be done with listening to this star. I went to the SETI Institute's webpage and there is a video of a discussion. I am watching it now, maybe it has the answers.
https://www.seti.org/facebooklive-2017-trappist-1

Edit: So the vid mentions that SETI has listened to that system, but no signals were detected. With the new announcement, they will continue to look at this star. Since it's 40 light years away, our ordinary transmissions should be able to be received by anyone with the right equipment over there. No good answer as to why we wouldn't hear anything if there was intelligent life there. But one point made was that if our transmissions from 1940's was powerful enough to reach them, if they send something back, it would get to us in the 2020's.
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Message 1851865 - Posted: 27 Feb 2017, 16:27:07 UTC - in response to Message 1851598.  
Last modified: 27 Feb 2017, 16:39:54 UTC

"cold" or"warm" to live depends not only on spectral class of the star but mostly from distance to the star.
I would say "too warm" for us on Mercury or too cold on Neptune. No matter that both orbiting same star as our Earth.
The pecularity of this discovery is the 3 planets happened to be in "life zone" of that particular star (with correction on its different spectral class already made). Life zone is area with expected mean ambient temperature on planet surface near zero Celsius.
Of course it depends on the particular atmosphere (if any) (compare Earth and Venus) but it's good estimate to start with.
Such placement makes this particular system on the top list of candidates to habitable planets and natural candidate for especially attentive listening for artifical signals as well.

P.S. from photosynthesis point of view red stars could be even more preferable than our Sun's G one. Red light (~600nm) is sufficient for Earth's PS1/2-based plants to make initial charge separation. Shorter waves required mostly for process control and such control mechanisms could easely be adapted to other spectral pecularities. So, having spectral maximum on longer wavelength could make photosynthesis performance even higher.
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Message 1851913 - Posted: 27 Feb 2017, 20:51:02 UTC - in response to Message 1851877.  

Regarding origins of life on Earth there is one (among lots of others btw) theory that most appropriate conditions were at surroundings of geothermal geysers.
Periodical change in environment and appropriate salts contents, temperature regimes make them suitable for initial biochemistry synthesis.
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Message 1857659 - Posted: 25 Mar 2017, 18:16:07 UTC
Last modified: 25 Mar 2017, 18:24:08 UTC

Sorry to a bearer of bad tidings but all the planets around Trappest-1 are/may be/perhaps tidally locked so roasted on one face deep frozen on the other.https://arxiv.org/abs/1703.05815
Old enough to know better(but)still young enough not to care
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Message boards : SETI@home Science : Trappist-1 - did we really search it?


 
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