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Stretching a 6" Newtonian to it's limits, Elephant's Trunk nebula

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#1 GIFTED1570

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Posted 22 October 2020 - 09:44 AM

I have been trying to prove the Newtonians can generate wonderful images too despite all the disadvantages of course, nothing like a good refractor but here is a very difficult target that is faint in sii and oiii and yet an hour of data was enough to pull a decent image with a cheap GSO Newtonian 6", asi6200mm, eq6r pro, ES coma corrector. class 3 skies

 

*the poor 2" focuser only has 2 compression screws so the tilt is bad but still pleasant image, ic1396

 

better resolution in the link

https://www.astrobin...s5rm3o/?nc=user

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Edited by GIFTED1570, 22 October 2020 - 09:54 AM.

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#2 calypsob

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Posted 22 October 2020 - 10:18 AM

Wow this is a great image. I think you just have coma from using the full frame with a 2” corrector. That aside the image looks alot better than I would expect. The data and resolution is excellent!

#3 GIFTED1570

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Posted 22 October 2020 - 10:45 AM

Wow this is a great image. I think you just have coma from using the full frame with a 2” corrector. That aside the image looks alot better than I would expect. The data and resolution is excellent!

thank you, absolutely, 2" coma corrector incapable of full frame, two inch focuser with tilts and still produces nice ones


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#4 jerobe

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Posted 22 October 2020 - 11:23 AM

Excellent!  Fine colors and details.  The six inch Newtonian is a capable instrument.


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#5 RogeZ

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Posted 25 October 2020 - 06:39 PM

I think your premise is incorrect.

There is plenty of proof that newts can take fantastic images; what you are working on here is the fact that you can use an inexpensive ota with an extremely demanding sensor and get a good result.

Btw, try the sharpstar corrector. Its supposed to be very good :)


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