Best of AOP - Galaxies

NGC 6027

This group of six galaxies has a controversial background that is similar to another famous group - Stephan's Quintet. In this example, five of the six galaxies show recessional velocities (redshifts) that are approximately equivalent. However the small spiral galaxy has a retreating velocity more than 4 times higher than the others. If these galaxies are truly bound gravitationally (at the same distance), it would be difficult to marry the conflict in velocity with distance. Please visit the NOAO gallery's description of NGC 6027 for a good explanation and labeled picture.

This image is deep enough to adequately show the tidal tails of the interacting galaxies. Note that galaxies seen through this material are significantly reddened.

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Last Updated: 24-Apr-2014

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Sky Location:

About This Image

Click on image for larger version.

Equipment

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.

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 = 80 minutes binned 1x1

Red = 20 minutes binned 2x2

Green = 20 minutes binned 2x2

Blue = 20 minutes binned 2x2

Minimum credit line: Doug Matthews/Adam Block/NOAO/AURA/NSF