NGC 7217

Click on image for larger version.

This galaxy has very tight spiral "structure"- however, no one feature extends long enough to be a spiral arm. This galaxy sports a curious ring of dust (dark circle) that surrounds the nucleus. It is estimated that this galaxy is around 41 million light years away. Note the very subtle difference in color between the inner yellowish region is outer bluish arms. This galaxy is not unlike NGC 2841 and NGC 488.

Equipment

20in RC Optical Systems telescope Operating at f/8.4
Paramount ME Robotic Telescope Mount
SBIG ST10XME CCD camera with color filter wheel

L R G B color production was used to create this image.

Luminance = 105 minutes binned 1x1
 Red = 20 minutes binned 2x2
 Green = 20 minutes binned 2x2
 Blue = 20 minutes binned 2x2
  • One iteration of L-R deconvolution (sharpening) algorithm using CCDsharp was applied to the luminance image.

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

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

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    Updated: 06/30/2003