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Nice photo of galaxy cluster





SonLight
An image of a galaxy cluster in Hercules, photographed by the new VST telescope, is posted at:

http://phys.org/news/2012-03-vst-captures-collisions-young-galaxy.html

A larger-scale image is available by clicking on the photo or going to:

http://cdn.physorg.com/newman/gfx/news/hires/2012/galaxiesgetu.jpg

You can see several pairs of spiral galaxies which appear to be colliding. There are also numerous galaxies which appear to be farther away and not part of the cluster. Stars within our galaxy show up as bright, usually blue-white spots, their apparent size due to overexposure. I think it would be helpful to have detailed annotation for an image like this. On the other hand, it's interesting to try to deduce as much as you can about what you are seeing. Maybe we should have a contest Very Happy

Edit:

The original of the article is at:

http://www.eso.org/public/news/eso1211/

They have a little more material about it there.
Skiing_Is_Euphoria
nice, very cool!
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