Best of AOP - Galaxies

NGC 891

This galaxy in Andromeda is perhaps the most beautiful example of a nearby spiral galaxy viewed edgewise. Note the small companion galaxies above and beneath the disk. This particular galaxy is of interest to astronomers that study the dynamics of material in the galactic plane of spiral galaxies. In this example, there are sprays of material (gas and dust) that are being accelerated perpendicular to the disk. This effect is not well-understood.

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Last Updated: 26-Feb-2014

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About This Image

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Equipment

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.

The AO unit was used for this image.

Luminance = 75 minutes binned 1x1

Red = 20 minutes binned 2x2

Green = 20 minutes binned 2x2

Blue = 20 minutes binned 2x2

Minimum credit line: Dale Cupp/Flynn Haase/NOAO/AURA/NSF