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Two faint nebula: Sh2-129 and Ou4


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Congratulations on this brilliant image. I have always suspected that OU4 would be within reach using a weaker Oiii filter than the Astrodon 3 nm Oiii  and you have proved it. OU4 It is by far one the most difficult DSOs to image due to it being ultra faint. Very well done.



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Well done indeed. Your signal strength on OU4 is incredible. Brilliant. This really is a faint target and you have it looking really strong. I'm not sure how you managed it but you certainly did!

I find the contrast in the Ha layer a little lacking by comparison but since you are imaging at this level I'm going to be honest.

This certainly deserves a magazine publication.


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Thx all! 

Well, Ou4 is really faint. Thats why i had to push the nebula quite strong. thats why it is a little bit smoothed.

the second problem i have is my quite bright night sky due to light pollution of the city of vienna and the airport.

this is how it looks like: http://www.astrobin.com/189696/

even more I'm satisfied with Sh2-129 and Ou4. 

but still i should get more exposure time. :) 

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