NGC 197


Click on image for larger version.


This group of 4 galaxies is estimated to be 180 million light years away. NGC 197 is the small, central galaxy of the three on the right side of the image. Above it is NGC 192 and beneath is NGC 196. NGC 201 is the spiral galaxy on the left. This group is also known as Hickson 7 and is in the constellation of Cetus.

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 = 90 minutes binned 1x1
Red = 20 minutes binned 2x2
Green = 20 minutes binned 2x2
Blue = 20 minutes binned 2x2

  • Very poor seeing conditions made the color balance of this image difficult to attain.
  • 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 the very dim and very bright details of the image simultaneously.
  • Minimum credit line: Karen Weiss and Patrice Cooper/Adam Block/NOAO/AURA/NSF

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    Updated: 11/18/2003