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Supernova in NGC 3169 in Sextans.  SN2003cg was at the time the most luminous discovered in the year.  It was caught at about maximum (mag 14.1) in the 2nd April image.  By 2nd May it had faded to mag 15.2.  Another image made on 28th May 2003 showed that it had faded to below the limit of detectability for my equipment, ie fainter than about mag 16.  About 65 mln light years away.

 

Image info

Telescope:  Skywatcher 8" f/5 Newtonian

Focus:  Prime focus

Camera:  SAC7B, uncooled

Exposure:  various, indicated in images 

Date:  2nd May and 2nd April 2003

Processing:  Acquired in K3CCDTools as AVI.  Stacked in Iris.  The top image is YRGB, composited in Photoshop.  Colour enhanced using Multiple Luminance Layering.  The negative images use only the Y component.

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