Quote:
Originally Posted by Mandy Liefbowitz
On Fri, 30 Jun 2017 19:51:09 +0100,
Am I imagining things or is there really a very faint plumey thing
falling "down" the image from the left-hand side of that galaxy?
If it's real, I'm seeing it as several times the width of the starry
part in length.
It's probably an artifact of the processing.
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I can't see what you are seeing. All I see is the obvious plume going up and around from the left side and a very faint hint of one from the right side running horizontally below the galaxy that needs much more exposure time to define.
I've attached a severely stretched black and white negative version of the image to bring out faint features and can't see it. Can you use a basic image program to indicate where it is?
Rick