Best of AOP - Galaxies

Abell 671

Rarely do galaxies in our Universe live in isolation. Instead the large scale universe (of normal matter) is quite clumpy with galaxies tending to congregate in large clusters and superclusters. The rich cluster of galaxies shown here is not nearby. Abell 671 is estimated to be around 600 million light years away. Even at this great distance, hints of galaxies of various types can be detected. The greater number of elliptical (fuzzy round ones) galaxies is probably due to the numerous gravitational interactions that have taken place through their mutual orbital dances (such as the pair to the right of center).

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Last Updated: 29-Jan-2014

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About This Image

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20in RC Optical Systems telescope Operating at f/8.1

Paramount ME Robotic Telescope Mount

SBIG ST10XME CCD camera with color filter wheel

LRGB color production was used to create this image.

The AO unit was used to acquire this image.

Digital Development (DDP) via Maxim/DL was also used in order to display the very dim and very bright details of

the image simultaneously.

Luminance = 90 minutes binned 1x1

Red = 15 minutes binned 2x2

Green = 15 minutes binned 2x2

Blue = 15 minutes binned 2x2

Minimum credit line: Michael Petrasko and Muir Eveden/Adam Block/NOAO/AURA/NSF