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M27 - The Dumbbell Nebula


martin_h
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this is lovely. one I have not yet seen as it's still hidden behind house from my garden.

it's not a criticism but what's the circular flare to the NW near the bright star? is it just an optical aberration?

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it's not a criticism but what's the circular flare to the NW near the bright star? is it just an optical aberration?

You think thats bad - you should see the one I cropped out! LOL I've yet to sort that out - hav'nt a clue where its comming from.

Take a look at this baby! - http://stargazerslounge.com/imaging-image-processing-help-techniques/104127-2-problems-now.html

Edited by martin_h
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You think thats bad - you should see the one I cropped out! LOL I've yet to sort that out - hav'nt a clue where its comming from.

Take a look at this baby! - http://stargazerslounge.com/imaging-image-processing-help-techniques/104127-2-problems-now.html

are you using a newt? I wonder if it's the bottom/end of the focusing tube? or maybe even the bright edges of the secondary? maybe flocking the edges would help?

whatever, it's a cracking image :D

Edited by Moonshane
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are you using a newt?

No its an 8" SCT, I stripped the image train down last night and had a look, the only way to remove the artifact was to remove the 6.3 reducer - bummer! will have to look into it a bit more.

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