Best of AOP - Galaxies

NGC 5351

NGC 5351 and NGC 5349 float together at around 100 million light years away. Astronomers found that the radio emissions of HI (redshifted 21cm line) surrounding NGC 5351 extend about 1.4 times the size of the galaxy that is seen in the optical wavelengths of light. Astronomers can use this information to determine the mass of a galaxy (in terms of its luminous and "dark" constituents).

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Last Updated: 09-Apr-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 = 90 minutes binned 1x1

Red = 20 minutes binned 2x2

Green = 20 minutes binned 2x2

Blue = 20 minutes binned 2x2

Minimum credit line: Teresa Hawes and Philip Darling/Adam Block/NOAO/AURA/NSF