NGC 1866 - New deep trip inside LMC !

[jsmoraes (Jorge)]

note: Some Carte and people classify as Globular cluster. Others as Open cluster. I see as Globular.

GSO 305 mm - Canon T3 - 11 x 4 min (44 min) - ISO 800 - OAG - Skyglow filter - Coma corrector

http://www.astrobin.com/full/152148/0/?real=&mod=

There are at least 2 without name or unidentified/unknow clusters

http://jsmastronomy.30143.n7.nabble....ter-td366.html

[Tony_ (Tony)]

Nice image Jorge - looks like you have done a good job with noise reduction.

I might have another go at this one soon.

Regards,
Tony.

[jsmoraes (Jorge)]

Yes, Tony. A mate suggested to use the XimagicDenoiser, and really it is a powerfull denoiser. I liked very much.

Look the photo attached. It was used only the XiDenoiser after HDR convertion from 32 bits DSS to 16 bits Photoshop

[Tony_ (Tony)]

Looks like a good noise reduction program - I might give it a go too.
That cluster looks like a globular to me too - there seems to be a few clusters in the LMC that get different classifications.

[jsmoraes (Jorge)]

Tony, it seems that the option of NLM is the top trick. I did a test with this option in Fitswork, that is full free, and the result is very similar.

Both has problem with the edge of stars. There will be always an area of 3 or 4 pixels around without the process. You must pay attention in this issue when adjust the parameters.

Those area unprocessed by NLM will must be processed with mask in another graphic processor.

The NLM is very powerful to reduce noise of the background and diffuse areas of nebulas.