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Cepheus wide mosaic

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#1 tkottary

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Posted 11 July 2020 - 03:02 PM

Here is 21 panel ha mosaic with zwo1600 and cannon 200 2.8 . Total panels came up to 25 due to rotation issues . Each panel has about 5-6 hours integration. All of them were individually calibrated ,drizzled  with vark 1.5 and denoised with JR’s TGv mmt method . Finally all the panels were assembled in APP for final mosaic . Image presented here is just default stf applied to histogram .
One thing that bothers me is the black holes in all the panels . Is this just due to low snr in those regions or some thing else?

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#2 vakulenko_sergiy

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Posted 11 July 2020 - 05:04 PM

Monumental work!

 

Do you plan to publish hi-res version? It will be interesting to see it in details.


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#3 jamesNewmanF125

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Posted 11 July 2020 - 05:17 PM

Heya Tarun =)

 

Some areas just have no/minimal signal, resulting in the holes.  You can take a look at one of my favorite imagers, J-P's work, and he does a lot of ultra-wide mosaics, which have a good approximation of where signal is/isn't.  A lot of what I've seen in his work, matches up with yours in terms of spots where there just isn't any signal.  A couple examples are:

 

https://astroanarchy...a52bc#he5fa52bc

 

https://astroanarchy...a52ba#he5fa52ba

 

I think your integration, thus far, is great man!


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#4 Jim Thommes

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Posted 13 July 2020 - 05:53 PM

Wow, that's a lot of work, but excellent image.


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#5 tkottary

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Posted 14 July 2020 - 12:51 PM

I will. Need another 14 nights for oiii data.

 

Monumental work!

 

Do you plan to publish hi-res version? It will be interesting to see it in details.



#6 tkottary

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Posted 14 July 2020 - 12:53 PM

Thanks James :)  So this project was inspired by JP's work. It's good to know these are indeed low snr.

 

I also (will ) have 2x RGB data for 21 panels with Spacecat and zwo 2600 which should also cover for these areas.

Heya Tarun =)

 

Some areas just have no/minimal signal, resulting in the holes.  You can take a look at one of my favorite imagers, J-P's work, and he does a lot of ultra-wide mosaics, which have a good approximation of where signal is/isn't.  A lot of what I've seen in his work, matches up with yours in terms of spots where there just isn't any signal.  A couple examples are:

 

https://astroanarchy...a52bc#he5fa52bc

 

https://astroanarchy...a52ba#he5fa52ba

 

I think your integration, thus far, is great man!


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#7 scottmm2012

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Posted 14 July 2020 - 01:10 PM

Jeez, I wish I had the patience to do something like this, and Mono to boot.   Is this a total of 5 - 6 hours or 5 - 6 hours per filter?  I'm lucky to get 2 hours of integration with a DSLR.  



#8 tkottary

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Posted 14 July 2020 - 03:11 PM

haha  smile.gif backyard imaging has made it easy even though i have to setup every clear night.  This is 5-6 hr Per Panel .  As of now ,plan is to image in HOO .

 

This is also done with dual imaging set up were I also shoot RGB data with Duo band filter . At the end , I  will have about 2x RBG data+ Ha /OIII data ie  about 430 hours

 

Jeez, I wish I had the patience to do something like this, and Mono to boot.   Is this a total of 5 - 6 hours or 5 - 6 hours per filter?  I'm lucky to get 2 hours of integration with a DSLR.  


Edited by tkottary, 14 July 2020 - 03:21 PM.

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#9 sunnyday

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Posted 14 July 2020 - 04:04 PM

superb work , thanks .




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