Best of AOP - Galaxies


M91 is one of four barred spiral galaxies in the Messier catalogue. (M109M95 and M58 are the others). M91 is located 52 million light years away in the Virgo Cluster of the galaxies.

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Last Updated: 24-Feb-2014

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About This Image

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20in RC Optical Systems telescope Operating at f/8.1

Paramount ME Robotic Telescope Mount

SBIG ST10XME CCD camera with color filter wheel

LRGB color production was used to create this image.

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

the image simultaneously.

Luminance = 105 minutes binned 1x1

Red = 30 minutes binned 2x2

Green = 30 minutes binned 2x2

Blue = 30 minutes binned 2x2

Minimum credit line: Thomas and Gail Haynes/Adam Block/NOAO/AURA/NSF