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NGC 5128, in Centaurus.  A peculiar galaxy, location of the strong radio source Centaurus A.  A prominent dust belt superimposed upon the elliptical galaxy may be the result of the elliptical swallowing a large spiral galaxy in the past.  Located about 15 mln light years away.

 

Image info

Telescope:  Skywatcher 8" f/5 Newtonian

Focus:  Prime focus

Camera:  SAC7B, uncooled

Exposure:  101 x 25s

Date:  6th May 2003

Processing:  Acquired in K3CCDTools as AVI.  Stacked in Iris.  YRGB image, composited in Photoshop.  Colour enhanced using Multiple Luminance Layering.

Comments

Processed using the YRGB technique.  During the later stages of curve stretching in Photoshop the brighter stars were prevented from bloating by de-selecting them.  The stars are mostly untrailed, reflecting a well behaved mount recently stripped down and lubricated.

Some of the characteristic diagonal banding noise from the SAC7 camera is visible in the brighter regions just outside the galaxy core.  In this case no wavelet processing was applied to reduce this noise as I didn't want to lose the fine detail in the dust lane.  Focus was exceptionally good reflected in this detail.

Star colours are still subdued although there are hints - a potential area of improvement.

Unsharp masking applied to the image with the stars deselected to enhance detail in the dust lane.

   
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