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Newbie 1st Time Crescent Nebula Requests for constructive critique · Vinny Vent · ... · 6 · 307 · 0

Vinnyvent84 0.00
Vinny Vent
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Hey all, this is really only the 2nd target I have ever processed. Looking for some honest constructive feedback on this one. Link to the full sized image is below. Thanks in advance!

Target: Crescent Nebula - NGC6888
Scope: Redcat 71 WIFD
Camera: ZWO ASI533MC
Mount: AM5
Filter: Optolong L-Ultimate
Integration Time: 300s x 214 (Approximately 18hrs)
Acquisition Software: ASIair
Processing Software: Pixinsight with finishing touches in Adobe PS
Location: Bortle 8/9 Backyard

Link To Full Sized Image: 

https://drive.google.com/file/d/153ypv2YDqbUXNGLexWWyMvArmWRm-whj/view?usp=sharing
Edited ...
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Rustyd100 5.76
Dave Rust
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Looks really nice!

More subs is always better, but you may not have needed 18 hours. There is diminishing returns on this target after maybe 4 hours.

On the other hand, doing so insured you revealed nicely the newly discovered feature below crescent…that bluish bubble. Another amateur found it just a year or two ago and I'm not sure it's received a formal name, yet. Those of us who would settle for fewer subs (guilty as charged) would not even see that in our final product.

You certainly have done an excellent job in acquisition and processing.

Interesting that you didn't get a more pronounced display of the crescent's greenish oxygen envelope. It certainly isn't due to a lack of effort! But you could always one day use an OIII filter and add the oxygen stack to this one.


Keep on keepin' on!
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skybob727 6.67
Bob Lockwood
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I agree, very nicely done.

Dave, can you point out this bluish bubble, all I see is the Crescent and the Soap Bubble nebula.
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Rustyd100 5.76
Dave Rust
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I’m an idiot. It is indeed the soap bubble nebula. First noticed in 2008. Shows how much behind the times I am!
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Vinnyvent84 0.00
Vinny Vent
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Bob Lockwood:
I agree, very nicely done.

Dave, can you point out this bluish bubble, all I see is the Crescent and the Soap Bubble nebula.


Dave Rust:
Looks really nice!

More subs is always better, but you may not have needed 18 hours. There is diminishing returns on this target after maybe 4 hours.

On the other hand, doing so insured you revealed nicely the newly discovered feature below crescent...that bluish bubble. Another amateur found it just a year or two ago and I'm not sure it's received a formal name, yet. Those of us who would settle for fewer subs (guilty as charged) would not even see that in our final product.

You certainly have done an excellent job in acquisition and processing.

Interesting that you didn't get a more pronounced display of the crescent's greenish oxygen envelope. It certainly isn't due to a lack of effort! But you could always one day use an OIII filter and add the oxygen stack to this one.


Keep on keepin' on!

thank you both! And Dave that could be my fault in regard to lack of the greenish oxygen. I probably could have done a better job of bringing that out more on processing. I may give it another go tonight lol I do appreciate the feedback!
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Habib_Sekha 1.51
Habib Sekha
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Very, very nice!

Second picture you ever processed?!?

Looking forward to the ones that will follow!
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Vinnyvent84 0.00
Vinny Vent
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Habib Sekha:
Very, very nice!

Second picture you ever processed?!?

Looking forward to the ones that will follow!

Thank you very much!
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