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NGC7331 & friends....ASI6200 captured with C14 Edge

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#1 pyrasanth

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Posted 30 June 2020 - 07:04 AM

Totally ignoring the advice of HappyLimpet (he likes me really)  who suggested easier targets I carried on around the same area of space as the Quintet & captured NGC7331 & the associated group of galaxies. The target is again low in the sky- so not much detail captured however its good practice for when the sky is darker. I once again processed using a full calibration then synthetic flats to deal with the severe light pollution rings. The rings do concern me as I'm not sure if they are coming from the reducer but at least I know they will get better with a darker sky. I can now calibrate them out even in the worst sky conditions- so I think I should be okay going forward.

 

The image is 40 1 minute subs at 3x3 bin each filter & 108 1 minute L subs again at 3x3 bin. I'm using Baader 50x50 mm filters.

 

As always let me know what you think- the detail will get better when NGC7331 is higher in a darker sky- I shall look forward to re imaging this & the Quintet. 

 

NGC7331_RGB3_WEB.jpg


Edited by pyrasanth, 30 June 2020 - 07:05 AM.

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#2 sunnyday

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Posted 30 June 2020 - 08:46 AM

very nice wide field , thanks .


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#3 mic1970

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Posted 30 June 2020 - 08:47 AM

Awesome pic.


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#4 pyrasanth

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Posted 30 June 2020 - 08:54 AM

Awesome pic.

I believe I can do better as I'm only able to image at under 40 degrees altitude before the night is over.



#5 Mert

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Posted 30 June 2020 - 11:43 AM

Great image and a load of detail!

I did the same galaxy but went for a mosaic to include the quintet

as well. 30 x 180 seconds, and as you can see

here: http://lammertus.epi...-V3-webpage.jpg

I had some rotation problem so the 2 panes don't stitch well together.

Hope to get my rotator soon.


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#6 pyrasanth

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Posted 30 June 2020 - 11:59 AM

Great image and a load of detail!

I did the same galaxy but went for a mosaic to include the quintet

as well. 30 x 180 seconds, and as you can see

here: http://lammertus.epi...-V3-webpage.jpg

I had some rotation problem so the 2 panes don't stitch well together.

Hope to get my rotator soon.

That's an excellent image. I'm still waiting to get a mount that can carry the 11" RASA that I've not yet unboxed the replacement from Celestron. Using the ASI6200 camera this would easily allow the capture of the whole field. This is a wonderful grouping of galaxies & I posted my earlier version of the Quintet yesterday https://www.cloudyni...200-full-frame/.

 

The full mosaic you have taked shows the respective groupings in all their glory- so well done on that front. I'm sure the rotator will make your life easier. If I were to use a rotator because of limited back focus I would need to change my entire filter wheel assembly which would be very expensive on both equipment and adaptors.



#7 Mert

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Posted 30 June 2020 - 02:45 PM

Right now I'm experimenting with another combination of the RC8 and

an ASI224MC.

That is a non-cooled OSC camera and gives me a smaller field of view

so I can get to smaller galaxies ( I hope ).

Had to remove some extensions on the back of the RC.

This afternoon I recolimated the scope ( took me about 3/4 an hour )

since the last time was more then 1 year ago.

Hope to see more of your results and when the RASA gets into business

please share the images :waytogo:


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