Best of AOP - Galaxies

NGC 4559

This spiral galaxy is located in the direction of Coma Berenices. A type II supernova went off in this galaxy some time ago (SN 1941a). Several papers estimate its apparent magnitude was 13 and absolute magnitude to be around 15.7. From this astronomers would estimate this galaxy to be between 20-30 million light years away. Like many nearby spiral galaxies, NGC 4559 displays bright star-forming regions and dust lanes in its expansive arms. There are also a number of background galaxies and galaxy groups in this image. (Note: by using redshift measurements- the galaxy is 35 million light years distant which is not in terrible disagreement with the SN data.)

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Last Updated: 02-Apr-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.

Two iterations of L-R deconvolution (sharpening) algorithm using CCDsharp were applied to the luminance 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 = 100 minutes binned 1x1

Red = 20 minutes binned 2x2

Green = 20 minutes binned 2x2

Blue = 20 minutes binned 2x2

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