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Author Topic: Is this a case of gravitational lensing?  (Read 1158 times)

Offline kenhikage

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Is this a case of gravitational lensing?
« on: 01/10/2012 00:07:19 »
Hello all!

I was fiddling around in Stellarium today and found this image near the constillation Orion. In case you can't read the coordinates, its center is near 5h 52m 45s, -6 15'.

So, what explains this ring of stars? Is this a case of gravitational lensing?


 

Offline RD

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Re: Is this a case of gravitational lensing?
« Reply #1 on: 01/10/2012 08:55:56 »
gravitational lensing can produce circular features ...

https://en.wikipedia.org/wiki/Einstein_ring

But your find just looks like a coincidence ... 

 

Offline CliffordK

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Re: Is this a case of gravitational lensing?
« Reply #2 on: 01/10/2012 09:40:54 »
No,

It is merely seeing a patterns when there is no underlying pattern.  Our eyes are excellent at picking up patterns, or geometric shapes, for example the Big Dipper, or the various constellations. 

Have you checked distance calculations on the stars?

I tried to circle the stars.
As displayed:


Several of the stars actually deviated somewhat from a circle.

And, then I tried to normalize the background grid to a square (should it be?).



There still seems to be somewhat of a circular pattern, but not including the stars in the same location, nor even including those on the opposite side of the circle.

Anyway, looking at the sky, somewhere you will find circular patterns, linear patterns, triangles, etc.

The circular pattern you have found appears far too large to be controlled by a single black hole.  And, you would still have to explain some kind of an underlying pattern for the stars that you see.
« Last Edit: 01/10/2012 09:42:28 by CliffordK »
 

The Naked Scientists Forum

Re: Is this a case of gravitational lensing?
« Reply #2 on: 01/10/2012 09:40:54 »

 

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