Ngc 6188

[Slawomir]

Work in progress...NGC 6188

So far only a bicolour image, 2hrs of Halpha and nearly 4 hours of OIII.

Would like to triple the amount of data and to also include SII, but that will have to wait for clear skies...

Full resolution version: http://www.astrobin.com/full/189183/0/

Thank you for looking.
S.

[rustigsmed]

that is very very nice Slawomir,

excellent details, looking forward to more!

[Paul Haese]

It's looking pretty good right now Slawomir. I like the extension of OII bubbles from the O star. I got vague hints of those. I can clearly see them in your image. I look forward to your final result.

[Placidus]

Very fine indeed, Slawomir! Superb contrast on the most subtle features, without losing anything. In particular the [OIII] bubbles that Paul mentioned are indeed well handled.

Don't know that you need hugely more H-alpha or [OIII] - your image is already smooth and detailed. We found [SII] to be a challenge. There's not so very much in the area, and it would take a long hammering to bring it out.

[multiweb]

That's superb Slawomir!. You nailed it! :thumbsup::thumbsup::thumbsup:

[strongmanmike]

Excellent image of the fighting dragons Slaw :thumbsup: Looking at this image it is not hard to see why it is a popular target this time of year :).

I am working on a Bicolour image (of a different target) at the moment, should be finished tonight, although I am incorporating some RGB in mine, it is interesting to see the palette variation possible even with just two NB filters in play.

Mike

[LewisM]

That is indeed splendid. The contrast and definition of the image is superior to MANY I have seen of this target that usually tend to look somewhat "misty" or Gaussian.

Well done

[Slawomir]

Thank you Russell.



Thank you Paul. I think that decent detail in OIII bubbles is due to ICX814's good sensitivity for this wavelength. I am only using a 4inch doublet and when shooting from our balcony, I have to collect data with objects relatively low in the sky (35 to 60 degrees above the horizon). I must admit that I love how 3nm Astrodons work with my QSI :-)



Yes, perhaps only extra 2 or so hours for Halpha and another 4hrs in OIII. As for SII, well, I am looking forward to the challenge :-)



Thank you Marc. I made several attempts at this data, but eventually got roughly where I wanted to get :-)

[Octane]

This is simply outstanding, mate.

It is one of my favourite areas of the sky and I've never been able to do justice to it properly. I started collecting narrowband data on it this year, but, other projects have put it on scrap heap for a while. Perhaps next year.

I can't wait to see this completed.

H

[Slawomir]

Thank you Michael. I have just recently "discovered" this nebula, and it is a very dynamic and interesting DSO. I think it rightly deserves more of my telescope's attention :)

Looking forward to seeing and contemplating your completed bicolour image.




Спасибо Lewis :)



Thank you Humayun for your encouragement.

[gregbradley]

Absolutely gorgeous Slawomir. That really turned out well.

Greg.

[Slawomir]

Thank you Greg :)

Honestly, I did not expect such decent result with relatively limited data I have collected so far. Unfortunately, good weather did not last...

[Eden]

Can't fault this one -- excellent choice of palette, too. Nice work, Slaw :thumbsup:

[codemonkey]

Awesome! Shots like this make me want to actually get around to trying narrowband.

[Rod771]

You must be please with this so far, looks fantastic! :thumbsup:

[Andy01]

Looking good Slawomir, but do try for the S2, it'll make it even more 3D then :)

[Geoff45]

Great image Slawomir. Lots of fine detail there
Geoff

[Spookyer]

Great work, I have been working on this target as well, be happy if mine turns out that good.

[Slawomir]

Thank you all for your very kind feedback.

I will certainly continue working on this project, when we get a clear night.

I have also learnt that flats will certainly be needed to remove gradients near the edges around the entire image - I suspect some reflections within the CCD chamber or maybe light gets bent on the edges of the CCD itself. Luckily this pattern is consistent for all subs and I have not rotated the camera. With shorter exposures I got away with using Dynamic Background Extraction in PI...

[Stevec35]

Love it! A superb effort.

Steve

[Slawomir]

Thank you Steve.

[Slawomir]

Still experimenting with the data...removed a few gradients and tried to better control stars while stretching the nebula...maybe not as nice colour balance though...

http://www.astrobin.com/full/189183/B/

[Regulus]

The large image is well worth a vist Slawomir. The depth and detail from the 2 colours is startling and magnificent, and although I look forward to the SII addition, I only hope it doesn't cloud the detail that's in this.
Superb

Trevor

[LewisM]

I just love what you are doing with humble kit - just shows you don't need to spend $13K on a mount, $8K on a scope and $15K on a CCD.

Just brilliant real extraction and utilisation. Kudos.

[Tony_]

Superb image Slawomir.

[Slawomir]

Thank you Trevor for your very kind feedback, I will do my best to at least preserve the detail when adding SII data :)



Thank you Lewis. Imagine if my gear was actually in capable hands...I have just learnt today how to make flats... :lol:



Thank you Tony!

[LewisM]

It already is

[Slawomir]

Have someone borrowed my telescope?

[bugeater]

That's an awesome image Slawomir. So much detail.
It's the kind of image I aspire to be able to create myself - a long way off I fear.

[Slawomir]

Thank you Marty, I really appreciate your kind feedback.

It might not be as long as you think...This is an example of what I would produce just 18 months ago...

http://www.astrobin.com/49475/0/

and I am a VERY slow learner... :)

[Slawomir]

After some experimentation I have noticed that my de-noising technique needed to be adjusted, as it used to very effectively dissolve fainter details. I really like how TGVDenoise works in PixInsight, so from now on this will my tool for controlling noise, and I will be applying it very moderately...

Revised Dragons look noisier, but there is also more wealth of fainter detail, so I like it :)

http://www.astrobin.com/full/189183/C/

Thank you for looking
S.

[Rex]

WOW! another great image Slawomir. You have really been pumping them out lately. Great stuff. Keep them coming mate.

[britgc]

Amazing image Slawomir. Love the detail in the revised version.

[Slawomir]

Thank you Rex, unfortunately I have run out of images to revise...may go fishing instead while waiting for clear skies :)



Thank you Bret, I am just doing my best :)

[LewisM]

WOWOWOWOWOW!

Please Daddy, can I play with THIS data? :)

[Slawomir]

No problemo. But what happened with the spider? ;)

[RickS]

That's a fantastic result, Slawomir! I look forward to the final version.

Cheers,
Rick.

[Slawomir]

Thank you Rick. I am hoping to collect more data for this object, and would love to also include SII, before the end of school holidays.