NGC 1187

Click on image for larger version.

This barred spiral Sbc(s)II galaxy is notable for how well the H II regions delineate the bar, inner ring, and almost the entire length of each of its half-dozen or so arms, "like beads on a necklace" to paraphrase Baade (1963). The two major arms appear to be extensions of the bar, which leads to the impression that they intersect perpendicularly with the inner ring of H II regions. It is the home of supernova SN1982R which brightened to a max of magnitude 14.6 on Oct 6, 1982.(Distance: 58 million ly)

Equipment

16in LX200 Meade telescope Operating at f/10
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 = 30 minutes binned 2x2
 Green = 30 minutes binned 2x2
 Blue = 30 minutes binned 2x2
  • The AO-7 unit was used to acquire 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 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: 11/06/02