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Old 21st of April 2011 (Thu)   #1
Catanonia
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Default New processing techniques : M81 and M82

I took the plunge recently and shelled out £150 for a PixInsight license and therefore thought since I had it, I had best use it.

Also I really wanted to get a good natural image of M81 and M82 and maybe try to get some of the flux (IFN) in the image. I have tried many times and these pair of galaxies are by bench mark for new scopes / cameras and processing aquirements.

So for the last 2 nights, I sorted out all of the kit and got the guiding good for 15 minutes.

However as you all know, the seeing has been rather pants and it seems to have affected me in getting the IFN. I can just make it out as a blue haze around the area, but well it is pretty poor.

The image processing was a very steep learning curve, about 3 hours work tonight gone into this to learn the techniques and play with PI.

All of the calibration, stacking, and about 80% of the processing was done in PI. For the 1st time ever I did not touch MaximDL or DSS.

The final touches were done with good old PhotoShop CS5.


The image details are as follows and I hope you like it.

LRGB (105:105:105:105) in 15min subs. No Ha as seeing was so bad.
Imaged on Skywatcher MN190 and QHY9 + 2 inch filters.
Guided with EQ6Pro, QHY5, ED80 and PHD.
Processed with PixInsight and CS5
Attached Images
File Type: jpg M81 M82 MN190 b.jpg (90.3 KB, 419 views)
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Old 21st of April 2011 (Thu)   #2
Stargazerfrank
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Default Re: New processing techniques : M81 and M82

never really noticed a blob above 81in pics before till this shot great job.
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Old 21st of April 2011 (Thu)   #3
Catanonia
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Default Re: New processing techniques : M81 and M82

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Originally Posted by Stargazerfrank View Post
never really noticed a blob above 81in pics before till this shot great job.
It is another galaxy next to M81 called Holmberg IX
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Old 21st of April 2011 (Thu)   #4
Celestron
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Default Re: New processing techniques : M81 and M82

WOAH Cat !!Great re-edit !! PI really brought those out !
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Old 22nd of April 2011 (Fri)   #5
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Default Re: New processing techniques : M81 and M82

Great details!
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Old 22nd of April 2011 (Fri)   #6
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Default Re: New processing techniques : M81 and M82

Very interesting. Thanks.
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Old 22nd of April 2011 (Fri)   #7
paul3221
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Default Re: New processing techniques : M81 and M82

Great image. Very well done!
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Old 22nd of April 2011 (Fri)   #8
monty28428
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Default Re: New processing techniques : M81 and M82

Sweet!
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Old 24th of April 2011 (Sun)   #9
Toxic Coolaid
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Default Re: New processing techniques : M81 and M82

Great image. I've only shot 81 82 one time but its on my list of things to do when I have time to get out of the city lights? That's the great thing about the sky....when one target moves away, another (or two) come into view. Can you suggest a tutorial for using PixInsight? It looks to be a pretty powerful program but I am totally lost when trying to use it. I've only used AUTO Background gradient removal.

Last edited by Toxic Coolaid : 24th of April 2011 (Sun) at 13:14.
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Old 24th of April 2011 (Sun)   #10
Catanonia
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Default Re: New processing techniques : M81 and M82

Quote:
Originally Posted by Toxic Coolaid View Post
Great image. I've only shot 81 82 one time but its on my list of things to do when I have time to get out of the city lights? That's the great thing about the sky....when one target moves away, another (or two) come into view. Can you suggest a tutorial for using PixInsight? It looks to be a pretty powerful program but I am totally lost when trying to use it. I've only used AUTO Background gradient removal.
Thanks for the kind comments.

Try this link that everyone uses.

http://www.harrysastroshed.com/pixinsighthome.html
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Old 29th of February 2012 (Wed)   #11
ramv
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Default Re: New processing techniques : M81 and M82

Nice work! PI is great for bringing the deep stuff out.

I have 5 hours of unprocessed m81-m82 still in the computer. Hopefully i will get some time this weekend...
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Old 29th of February 2012 (Wed)   #12
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Default Re: New processing techniques : M81 and M82

so nice!
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