- Posts: 1208
Planet discovered orbiting Proxima Centauri
24 Aug 2016 20:09 #253626
by Loudzoo
Planet discovered orbiting Proxima Centauri was created by Loudzoo
Although hundreds of exoplanet discoveries have been made in recent years this one is particularly interesting. Not only is it orbiting our nearest stella neighbour but it is slap bang in the habitable zone and potentially only slightly larger than Earth!
Watch the vid for more details:
https://youtu.be/aOTWo6_602Q
The abstract for the paper can be found here:
http://www.nature.com/nature/journal/v536/n7617/full/nature19106.html
Aliens picking-up our signals will be looking forward to watching the London Olympics in a few weeks
Watch the vid for more details:
https://youtu.be/aOTWo6_602Q
The abstract for the paper can be found here:
http://www.nature.com/nature/journal/v536/n7617/full/nature19106.html
Aliens picking-up our signals will be looking forward to watching the London Olympics in a few weeks
The Librarian
Knight of TOTJO: Initiate Journal , Apprentice Journal , Knight Journal , Loudzoo's Scrapbook
TM: Proteus
Knighted Apprentices: Tellahane , Skryym
Apprentices: Squint , REBender
Master's Thesis: The Jedi Book of Life
If peace cannot be maintained with honour, it is no longer peace . . .
Knight of TOTJO: Initiate Journal , Apprentice Journal , Knight Journal , Loudzoo's Scrapbook
TM: Proteus
Knighted Apprentices: Tellahane , Skryym
Apprentices: Squint , REBender
Master's Thesis: The Jedi Book of Life
If peace cannot be maintained with honour, it is no longer peace . . .
Please Log in to join the conversation.
- Lykeios Little Raven
- Offline
- User
- Question everything lest you know nothing.
11 Sep 2016 19:31 #256766
by Lykeios Little Raven
“Now I do not know whether I was then a man dreaming I was a butterfly, or whether I am now a butterfly, dreaming I am a man.” -Zhuangzi
“Though, as the crusade presses on, I find myself altogether incapable of staying here in saftey while others shed their blood for such a noble and just cause. For surely must the Almighty be with us even in the sundering of our nation. Our fight is for freedom, for liberty, and for all the principles upon which that aforementioned nation was built.” - Patrick “Madman of Galway” O'Dell
Replied by Lykeios Little Raven on topic Planet discovered orbiting Proxima Centauri
This is very exciting! I hope we can learn more about this planet in the coming years. I think it is unlikely we'll be traveling to other star systems at any point in the near future, but I hope there are other methods of gaining information about this planet. I'll be watching for any new developments.
Thanks for sharing!
Thanks for sharing!
“Now I do not know whether I was then a man dreaming I was a butterfly, or whether I am now a butterfly, dreaming I am a man.” -Zhuangzi
“Though, as the crusade presses on, I find myself altogether incapable of staying here in saftey while others shed their blood for such a noble and just cause. For surely must the Almighty be with us even in the sundering of our nation. Our fight is for freedom, for liberty, and for all the principles upon which that aforementioned nation was built.” - Patrick “Madman of Galway” O'Dell
The following user(s) said Thank You: Loudzoo
Please Log in to join the conversation.
12 Sep 2016 11:22 #256828
by
Replied by on topic Planet discovered orbiting Proxima Centauri
This is really interesting, mainly because of the singular planet characteristics but also because many scientist believed in the existence of Proxima b a long time ago but we had to wait 20 years to prove it.
Anyway, I do not see any trace of a spectrum analysis or a comparative planetary double take in the article. These are technics to gather data about planet atmosphere and composition, I hope someone is going to do these analysis in the near future, finding oxygen or water in the atmosphere would be a major discovery.
Anyway, I do not see any trace of a spectrum analysis or a comparative planetary double take in the article. These are technics to gather data about planet atmosphere and composition, I hope someone is going to do these analysis in the near future, finding oxygen or water in the atmosphere would be a major discovery.
Please Log in to join the conversation.
01 Oct 2016 18:34 #259316
by
Replied by on topic Planet discovered orbiting Proxima Centauri
From what I have read, they use the "wobble" method as opposed to the Doppler shift to view the planet because it does not orbit in our line of sight, which makes it difficult to discover the atmospheric composition.
Please Log in to join the conversation.
02 Oct 2016 08:09 #259381
by Gisteron
Better to leave questions unanswered than answers unquestioned
Replied by Gisteron on topic Planet discovered orbiting Proxima Centauri
Proxima Centauri is by no means a very distant star (it is in fact the closest of them all), but even then I'd sincerely doubt that we can resolve an image well enough to see the actual star as opposed to a lens flare of it, much bigger than the object. To detect wobbling as actual motion across the frame will remain pretty much impossible in practice for still a while to come. The way we detect wobbling is by the cycles of the star changing total distance to our telescopes. If those changes are rapid enough, we get an image of the object that is shifted in light frequency, a doppler-shifted image, if you will. By "rapid enough" I of course mean any change that is so rapid that the shifts our instruments show are too clearly identifiable as to be shrugged off as measuring inaccuracies. In other words, the Doppler thing is how we detect the wobble thing.
As for measuring the composition of a planet... Outside of resolving or at least somehow separating the planet's spectrum from the star's, I don't know that it can be done.
As for measuring the composition of a planet... Outside of resolving or at least somehow separating the planet's spectrum from the star's, I don't know that it can be done.
Better to leave questions unanswered than answers unquestioned
The following user(s) said Thank You: Loudzoo
Please Log in to join the conversation.
02 Oct 2016 08:48 #259385
by Loudzoo
This message has an attachment file.
Replied by Loudzoo on topic Planet discovered orbiting Proxima Centauri
Seems like we'll need to get closer to the subject before we can learn the really juicy details we might like to discover!
This is a great paper on what seems to be the best chance we have for interstellar flight: beam propulsion -
This is a great paper on what seems to be the best chance we have for interstellar flight: beam propulsion -
Attachment hf3fa5ab.pdf not found
The Librarian
Knight of TOTJO: Initiate Journal , Apprentice Journal , Knight Journal , Loudzoo's Scrapbook
TM: Proteus
Knighted Apprentices: Tellahane , Skryym
Apprentices: Squint , REBender
Master's Thesis: The Jedi Book of Life
If peace cannot be maintained with honour, it is no longer peace . . .
Knight of TOTJO: Initiate Journal , Apprentice Journal , Knight Journal , Loudzoo's Scrapbook
TM: Proteus
Knighted Apprentices: Tellahane , Skryym
Apprentices: Squint , REBender
Master's Thesis: The Jedi Book of Life
If peace cannot be maintained with honour, it is no longer peace . . .
This message has an attachment file.
Please log in or register to see it.
The following user(s) said Thank You:
Please Log in to join the conversation.
13 Oct 2016 08:37 #261027
by
Replied by on topic Planet discovered orbiting Proxima Centauri
Yes! I had confused Doppler shift for transit photometry. Your are correct, sir.
Please Log in to join the conversation.