[Lex Computer & Tech Group/LCTG] Astronomers may have discovered first planet to orbit 3 stars

[George Gamota]

Tony

You are right if the planet is very far  away from the stars but if close in, the orbit will never be the same and thus not stable in the sense the orbits will not repeat. 

George

 

From: Tony <galaitsis at verizon.net> 
Sent: Monday, October 4, 2021 12:29 PM
To: George Gamota <ggamota at stma-llc.com>; 'Ken Pogran' <pogran at alum.mit.edu>; Tony Galaitsis <Galaitsis at verizon.net>
Cc: 'Lex Computer Group' <lctg at lists.toku.us>
Subject: Re: [Lex Computer & Tech Group/LCTG] Astronomers may have discovered first planet to orbit 3 stars

 

George,

Looking at the star system image on the left, I think I am looking at a "point source" surrounded by 1 ~circular ring and 2 ~elliptical rings, all 3 geometrically "centered" at the 3-star group (1 bright, 2 faint/invisible that did not ignite?). And, I am speculating that the point source comprises 1 live star and 2 invisible companions (that never ignited?) in stable orbit around each other (for a 3-body system).

In response to your question (re 4-body system), I think that if the planet is (and the rings are) "enough far away" from the 3-star group, then they sense essentially a single circularly symmetrical gravitational well, which would result in stable circular/elliptical planet orbit and dust rings.

I am saying circular/elliptical even though I think they are all circular (in far field), with the angular momentum vector of the inner ring pointing at a different direction than those of the planet (cleared path) and 2 outer rings that appear to be parallel to each other.

However, I am not an astrophysicist, so my speculation could be anywhere.

Cheers,

Tony



=========

 

On 10/2/21 9:23 PM, George Gamota wrote:

Thanks ken – it worked

A key question I have from classical mechanics, can this be a stable orbit?

It is a 4 body system.

George

 

From: Ken Pogran  <mailto:pogran at alum.mit.edu> <pogran at alum.mit.edu> 
Sent: Saturday, October 2, 2021 1:08 PM
To: George Gamota  <mailto:ggamota at stma-llc.com> <ggamota at stma-llc.com>
Cc: palbin24 at yahoo.com <mailto:palbin24 at yahoo.com> ; 'Lex Computer Group'  <mailto:lctg at lists.toku.us> <lctg at lists.toku.us>
Subject: Re: [Lex Computer & Tech Group/LCTG] Astronomers may have discovered first planet to orbit 3 stars

 

It works if you change the .htm at the end of the URL to .html

Ken


George Gamota wrote on 10/2/21 12:56 PM:




Peter
I get a 404 error
George 
 
-----Original Message-----
From: LCTG  <mailto:lctg-bounces+ggamota=stma-llc.com at lists.toku.us> <lctg-bounces+ggamota=stma-llc.com at lists.toku.us> On Behalf Of
palbin24 at yahoo.com <mailto:palbin24 at yahoo.com> 
Sent: Saturday, October 2, 2021 11:33 AM
To: Lex Computer Group  <mailto:lctg at lists.toku.us> <lctg at lists.toku.us>
Subject: [Lex Computer & Tech Group/LCTG] Astronomers may have discovered
first planet to orbit 3 stars
 
Interesting article 
 
https://phys.org/news/2021-10-astronomers-planet-orbit-stars.htm
 
Peter Albin

 





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