SHO Lagoon V1

[Slawomir]

Hi all,

Sharing my first attempt ever for this target at combining three channels together. May need to tweak the colours and will try adding RGB stars at some point.

About 30 hours of data through my 105mm guidescope: https://www.astrobin.com/full/411375/B/

Thank you for looking :hi:
Suavi

[gregbradley]

Lovely, I much prefer this version. Wonderful detail. Hey you aren't allowed to call the beautiful CFF 105 work of art a guidescope!!

They are the new AP scopes.

Again, detail I would expect only from a 12 inch aperture scope. Amazing.
Your small pixelled Sony sensor is matching the optics and your seeing really well.

Greg.

[Slawomir]

Thank you Greg for your very kind feedback. I really look forward to seeing your images taken with your new shiny 105mm guidescope :scared3:and the 16200 :thumbsup:

[multiweb]

Looks great Suavi. Nice M8. :thumbsup::thumbsup::thumbsup:

[Paul Haese]

Lovely detail Suavi. The colour is a good palette too. My preference if for it to be a little ruddy brown but this one is the traditional HST palette and it is a good combination.

[Placidus]

Magnificent!

Looks very three-dimensional and compelling. All our favourite features there in sharp detail.

Something we've not noticed before: if you rotate your image a bit under 90 degrees clockwise, the wider area around the hourglass (which you've quite sensibly chosen to burn out so as to avoid that overly diagrammatic HDR look) becomes the white (bald) head and shoulders of Lucifer, as seen from above and behind. Still further afield are his very impressive wings.

Best,
MnT

[Slawomir]

Thank you Marc :hi:


Glad you like it Paul. I was trying to get an overall look of a blue cosmic lagoon with brownish rocks around and the green algae region was just a bonus. Got RGB star data last night so will try incorporating it into the image.



Thank you Mike and Trish. Yes, I didn’t worry about the hourglass and was hoping to highlight dynamic nature of this beautiful cloud of cosmic gas - I can see this figure too! Perhaps he is the Lagoon keeper?

[Slawomir]

And here is one for George - it does look a bit like a face!

[Atmos]

You’ve got a great guide scope there Suavi, resolution and depth is pretty nice indeed :)

[Slawomir]

Thanks Colin :hi:

I wish I collected NII instead of OIII as it seems to have more interesting features, and now I’m kind of ready to move on to another target.

[Atmos]

Geez NII is difficult to blend into a SHO image. Fantastic data btw :P

Okay, first off! if you're going to replace NII with something I would definitely suggest SII in the case of M8.

The first image is a comparison between a SHO and NHO.
The second and third images are comparisons of SHO and NHO.
The third is a SNN. This is probably the most compelling of evidence. All of that grey area is where both the SII and NII signal is near identical. The red where the SII is stronger and teal where the NII is stronger. And there is a lot of grey!

What I found when trying to combine the NII (before doing these comparisons) was that the moment I tried to add in the NII it just sucked the colour out of the image and gave everything a strong purple cast as I assigned NII to purple.

Here is a link to a NSHON image (https://www.astrobin.com/full/412166/0/) where you can see where the NII and SII differ at higher resolution. There is some benefit from a interesting science stand point but in this case the NII and SII are so similar that it becomes a bit over powering.

[Slawomir]

Thank you Colin for experimenting with the data and for sharing your results.

I believe significantly lower SNR in the NII (about 15 times less exposure than other channels) might have affected its contribution in terms of colour and detail.

Cool experiment though :thumbsup:

[strongmanmike]

A fine example of a narrowband Lagoon Suavi, fine detail, three channels/colours clearly shown, totally looks like nebulous gas, subtle clean and nuanced processing, even the magenta stars fit in and make sense...excellent :thumbsup:

Mike

[Andy01]

Ok , I'm just going to say it - it's a good image as mentioned above, but in my opinion it needs a proper Suavi-fying! :lol:
In previous posts eg: your cat's paw (http://www.iceinspace.com.au/forum/showthread.php?t=137665) you have produce bold, intense, benchmark NB images of DSO's - which were electrifying :thumbsup:
This one seems a tad vanilla to me, no offence intended. :scared3:

[Slawomir]

Thank you Andy for your feedback. Although reluctantly, I eventually took onboard what you said about sharpness in the past and experimented with deconvolution and it has improved my images, I think. Perhaps you are right again, I’m too careful and not daring enough with data processing and experimenting with vibrant colours :question:

I need to meditate on that. Thanks Andy :thumbsup:

P.S. I slightly increased saturation in version B.

[Atmos]

If you're going to go down the decovolution path might I suggest that you drizzle integrate the data you've got. I did do a quick deconvolution hit to your Ha and it does improve it but you'll be able to do a better job with a larger PSF.

[Slawomir]

Good idea Colin - worth trying for sure. I’m imaging at 1.18” pp with a 4” so there is only so much that can be squeezed out of the data, but drizzle followed by decon, if done well, could give that extra few percent :thumbsup:

[Atmos]

I've been drizzling 5" data a 1.16"/pixel for a couple of years and been very happy with the results :)

[Slawomir]

I went over the data for the Lagoon (it's been raining for a few days) and have pushed processing on Luminance a tad further. I hope in version 3 interesting structures are more prominent without giving an impression of being overcooked.

V3: https://www.astrobin.com/full/411375/C/?nc=user

Vanilla (first) version: https://www.astrobin.com/full/411375/0/

Any comments and/or criticism will be appreciated.

Suavi

[Peter Ward]

Really well captured :thumbsup::thumbsup:

The result you've achieved is remarkable...are you sure it's a 105mm and you haven't missed a couple of digits? :)

[gregbradley]

It looks great Suavi.

I agree its showing detail I would not expect at 105mm.

Greg.

[Slawomir]

Thank you Peter and Greg - much appreciate your encouragement :thumbsup:

[Decimus]

Absolutely wonderful image, Suavi. The same applies to your posts on Astrobin which I have been looking at this evening: stunning!:thumbsup:

Must also take another look at the QSI 690 and put it up there on my shortlist of camera choices.

Cheers,
Richard

[Slawomir]

Thank you Richard - glad you like the images on Astrobin :thumbsup:

Yes, this camera has been working very nicely and I am yet to learn to take a full advantage of it.