Best of AOP - Galaxies

NGC 2403

NGC 2403 is a showy face-on spiral galaxy in Camelopardalis (The Giraffe). In this galaxy many bright emission nebulae can be seen as bright pink regions in the spiral arms. This galaxy extends well beyond this field of view- note the very blue arms reaching towards the edges of the frame. This galaxy is estimated to be around 12 million light years away. It is associated with a nearby group of galaxies called the M81 group. (M81 is the largest galaxy in this group.)

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Last Updated: 12-Mar-2014

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About This Image

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20in RC Optical Systems telescope Operating at f/5.5

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 = 75 minutes binned 1x1

Red = 20 minutes binned 2x2

Green = 20 minutes binned 2x2

Blue = 20 minutes binned 2x2

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