Best of AOP - Galaxies

NGC 4527

NGC 4527 is a spiral galaxy that is similar in shape to our nearest large neighbor, the Andromeda galaxy. However NGC 4527 is no closer than 20 times the distance to the Andromeda galaxy (which is only 2.5 million light years away). The distance to this galaxy cannot be easily computed based on the expansion of the Universe since the galaxy itself has a high velocity within the Virgo Cluster of galaxies. A supernova occurred in this galaxy in 1991. This could have helped nail down its distance by acting as a "standard candle." However, the light (curve) emitted by this particular stellar explosion was atypical and the distance to NGC 4527 still remains a bit uncertain.

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Last Updated: 02-Apr-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.

Two iterations of L-R deconvolution (sharpening) algorithm using CCDsharp were 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: Mikhael and Janice Kollander/Adam Block/NOAO/AURA/NSF