NGC 7741


Click on image for larger version.

Galaxy NGC 7741 is a barred spiral galaxy of type SB(s)cd, meaning that it has a central bar-like concentration, evident here, and a small number of fairly open large-scale spiral arms. The galaxy reaches about 50% further out than this picture covers, so the outermost regions are not visible. NGC 7741 is quite nearby, and is receding from us at only 1.7 million miles per hour. (Distance: 30 million ly)

Equipment

16in RC Optical Systems telescope Operating at f/8.8
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 = 40 minutes binned 2x2
Green = 40 minutes binned 2x2
Blue = 40 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.

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

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    Updated: 11/07/02