Best of AOP - Galaxies

NGC 7753

These interacting galaxies are reminiscent of the much closer (and famous) example, M51. NGC 7753 and its companion are more than 200 million light years distant. Note the arm that the two galaxies share is divided by some interesting mechanism. Both the companion and NGC 7753 have recent episodes of star formation taking place. The small galaxy has most likely made a close passage to its larger neighbor in its orbit. It will either be flung out into the inter-galactic realm or, more likely, it will eventually be consumed by NGC 7753.

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Last Updated: 07-May-2014

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About This Image

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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.

Two iterations of L-R deconvolution (sharpening) algorithm using CCDsharp were applied to the luminance image.

Data taken with considerable moonlight and through hazy clouds.

Luminance = 120 minutes binned 1x1

Red = 20 minutes binned 2x2

Green = 20 minutes binned 2x2

Blue = 20 minutes binned 2x2

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