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Sharpless 106 - Vertical lines introduced by WBPP

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#1 SeymoreStars

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Posted 01 August 2021 - 01:22 AM

The three prominent vertical lines in the center of the image do not appear in any of the calibration frames or the light frames. After the WBPP does it's thing they appear. Any ideas what causes this?

 

Image10 ABE clone
 

 

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#2 Jim Waters

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Posted 01 August 2021 - 01:56 AM

Which release of WBPP?  Have you tried manual stacking? 

 

Did you take BIAS, Flats and Darks?


Edited by Jim Waters, 01 August 2021 - 01:58 AM.


#3 SeymoreStars

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Posted 01 August 2021 - 02:17 AM

WBPP version 2.12

 

Yes bias, flats and darks.

 

Will try manual stacking tomorrow.



#4 terry59

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Posted 01 August 2021 - 05:02 AM

It appears to be present across the left side also. When you say calibration frames I assume you do not mean the masters. How are they?



#5 Mert

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Posted 01 August 2021 - 05:18 AM

Very strange Steve, I hope you solve it stacking manually!

By the way, fantastic resolution ( CDK17?? )

 

Stay well,

Mert


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#6 SeymoreStars

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Posted 01 August 2021 - 07:38 AM

It appears to be present across the left side also. When you say calibration frames I assume you do not mean the masters. How are they?

The master calibration frames look good the master light frames don't look good.

 

Very strange Steve, I hope you solve it stacking manually!

By the way, fantastic resolution ( CDK17?? )

 

Stay well,

Mert

Thanks Mert, the CDK17 was used.



#7 SeymoreStars

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Posted 01 August 2021 - 02:15 PM

I became so dependent upon WBPP I forgot how to manually calibrate LOL. The vertical bars are absent from the manually calibrated image. All that was done to this image was to combine the NB channels with pixelMath, SCNR and histogramTransformation. These images were un-binned, maybe WBPP choked on that amount of data?

 

42 - 600 second NB images    (116 MB each)

65 Ha Flats  (over 10 seconds)  (233 MB each)

65 Sii Flats  (over 10 seconds)  (233 MB each)

65 Oiii Flats  (over 10 seconds)  (233 MB each)

39 Darks Frames (600 seconds)  (233 MB each)

65 Bias Frames   (233 MB each)

 

It's weird, I'm glad my data is not the culprit. If you have any idea what I might have done wrong feel free to throw it out there.

 

get.jpg?insecure



#8 SeymoreStars

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Posted 01 August 2021 - 03:16 PM

Processed a little.

 

get.jpg?insecure

 

get.jpg?insecure




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