Best of AOP - Galaxies


Seldom is the name M31 (the Andromeda Galaxy) heard without at least mentioning its closest elliptical companion, M32. This small galaxy is around 8,000 light years across (longest dimension) and contains a few billion stars (not that many). M32 is considered in the foreground of its larger parent galaxy. Note that the background looks mottled in this image. This is due to the millions of unresolved stars in the disk of M31. (You can even see a small HII region towards the right side of the image.) Just imagine the view of M31 from the outskirts of M32- words would certainly fail to describe the view.

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Last Updated: 19-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.

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 very dim and very bright details of

the image simultaneously.

Luminance = 12 minutes binned 1x1

Red = 6 minutes binned 2x2

Green = 6 minutes binned 2x2

Blue = 6 minutes binned 2x2

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