Re: Earth-size planet orbiting Alpha Centauri B

2012-10-17 Thread David Hobby

On 10/17/2012 7:12 AM, Ronn! Blankenship wrote:

Not in the habitable zone, however . . .
...

(3) Copy of the article to appear in today's issue of NATURE for those 
who want all of the technical details:


http://www.eso.org/public/archives/releases/sciencepapers/eso1241/eso1241a.pdf 



Ronn--

Thank you!  That's an interesting article.

They used a lot of observing time on a large telescope, and seemed to be 
really pushing the limits.


I think the trickiest part was accounting for how "sun spots" would 
affect the relative luminosity
of the parts of the star rotating towards versus away from us.  One may 
just have to give up on finding

planets with orbital periods close to a star's rotational period?

---David

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Earth-size planet orbiting Alpha Centauri B

2012-10-17 Thread Ronn! Blankenship

Not in the habitable zone, however . . .

Here are the announcements, in increasing order of "technicality":


(1) Popular-level from 'Bad Astronomer" Phil Plait:

http://blogs.discovermagazine.com/badastronomy/2012/10/16/alpha-centauri-has-a-planet/?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+BadAstronomyBlog+%28Bad+Astronomy%29

or

http://snipurl.com/25bmv59



(2) The ESO announcement:

http://www.eso.org/public/news/eso1241/



(3) Copy of the article to appear in today's issue of NATURE for 
those who want all of the technical details:


http://www.eso.org/public/archives/releases/sciencepapers/eso1241/eso1241a.pdf



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