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Messier 82 (UMa)

Posted: Wed Jan 26, 2022 9:54 pm
by emarko

Re: Messier 82 (UMa)

Posted: Thu Jan 27, 2022 12:07 am
by admin
Lovely - a good M82 shows the gaseous outflows from both poles, and they are readily visible here. :thumbsup:

Was this with the L-Pro in place?

Re: Messier 82 (UMa)

Posted: Thu Jan 27, 2022 6:19 am
by emarko
Thank you very much .... Optolong L-Pro filter was it, yes. It would be good to add exposures with a narrowband filter.

Re: Messier 82 (UMa)

Posted: Thu Jan 27, 2022 8:29 am
by admin
emarko wrote: Thu Jan 27, 2022 6:19 am Thank you very much .... Optolong L-Pro filter was it. It would be good to add exposures with a narrowband filter.
The coloring is remarkably intact still, even with the filter in place. Very nice.
Some Ha would indeed really make this object shine!

Re: Messier 82 (UMa)

Posted: Thu Jan 27, 2022 6:56 pm
by firebrand18
Beautiful result, nicely done! I do have a question Ivo or others may answer as I notice the stars here exhibit the same "blue hat" color on the top left of center I get on my broadband images and curious if this is due to the L-Pro (I use it extensively as well), heavy light pollution (I am in Bortle 8) or other variance / optical reason?

CS

Re: Messier 82 (UMa)

Posted: Fri Jan 28, 2022 6:42 pm
by emarko
Thank you very much, I think the stars are like that because of the optical geometry of my ordinary SCT. When I looked & compare on Astrobin between ordinary sct and edgehd sct, it seems to me that the stars at edgehd are more corrected while using the L pro filter.