Part of the Markarian's Chain
Markarian's Chain is a stretch of galaxies that forms part of the Virgo cluster.. It's called a "chain" because, when viewed from Earth, the galaxies lie along a smoothly curved line.
An annotated image is below on this page, the image here is 50% size, the full size image can be viewed here.
This image was made up of 7x10m Luminance and 3x5m with each RGB filter.
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