NGC 4699

Click on image for larger version.

NGC 4699 is a very tightly wound spiral galaxy with the hint of a bar-like structure in its nucleus. At a distance of 60 million light years away, it resides at the outskirts of the Virgo Cluster of galaxies. Though small, this galaxy is quite bright and makes a good target for amateur CCD imagers. In the past, this galaxy has had a number of bright supernovae explosions and so it makes a good galaxy to keep on eye on for future activity. NGC 4699 is similiar in structure to galaxies such as NGC 2775. 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 = 100 minutes binned 1x1
 Red = 20 minutes binned 2x2
 Green = 20 minutes binned 2x2
 Blue = 20 minutes binned 2x2
  • Due to a very bright moon (70%)- obtaining a reasonable color balance with minimal color gradients was difficult.
  • 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: Michael Vogel and Robert Mitsch/Adam Block/NOAO/AURA/NSF

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    Updated: 03/30/2004