[jase (Jason)]

Originally Posted by leon

Wow Jase, an other master piece as expected, although both are excellent, I do prefer the first, but that is MHO only, awesome shooting

Leon

Thanks for your comments Leon. Yes, a true colour image is always a crowd pleaser. Narrowband takes some getting use to. I enjoy working with narrowband has it allows for more creative expression.

Originally Posted by strongmanmike

Hmm?..lets see? That star would have been at least as heavy as our Sun soooooo thats 10 to the power of 30 kg or so of expploded gasses plus a white dwarf...?...yeh! EASY!

Your posts are becoming bloody books Jase

Very nice dumbell image and yes I agree, to reveal this in such a short exposure is pretty cool...A dumbell image without the faint outer ejecta is becoming a pretty ordinary image these days

I want a high QE/well depth CCD now

MIke

Cheers Mike. Reading the blurb is optional mate. One day, I’ll shock you by just posting a link to the image. Agree, you know when you’ve done this target justice when you see the fainter features/ejecta. I hear you regarding high QE/well depth. The Alta U42 has a peak QE of >90% @ 550nm. Leaves the KAI-11002 for dead. Time for an upgrade?

Originally Posted by rpsastronomy

I think it looks like my brain,about to explode after trying to understand all these processing techniques:
But seriously ,they look **** hot and i would say i like the real colour one best.
At least with remote imaging you can get clear skys somewhere

Thanks Rob. Providing you know the principles of processing, that’s all that counts. I have a few routines I use. I’m still learning the ropes. Yes, the joys of remote imaging. Though its not always clear, but you do increase your chances of acquiring data.

Originally Posted by renormalised

Great piccies, Jase. Both of them

I like both traditional and mapped colour data, they both have their place and can look as good as one another. If done correctly, they can both bring out a lot of good detail that's scientifically useful when studying nebula etc.

Thanks Renormalised. I still feel NB imaging is rather artistic over scientific. You still strive for something aesthetic. Takes a while warm to pink stars for example. I don’t think the SHO palette is ideal for this target, hence may rework the data another time.

Originally Posted by Bassnut

Totally awesome Jase, the nebula extension and core detail is exceptional.

On zooming in (im allowed to, given the gear list ) there seems to be a bit of colour noise in the background, but that could be the upscaled RGB data you added, and given the object is pretty dim, even 4hrs odd is not a lot of time.

Interestingly star halos are stronger on the true colour image, usually the NB suffers that problem more, but you used Ha on the true colour image too, so that might explain that.

When the colour data is not the best, I find using Ha as a lumanence channel in NB (as in Ha;sII;Ha;OIII) allows detail boost, but of course colour is then somewhat washed out and the colour channels need lum added (as you seem to be good at).

All in all, a wonderfull effort Jase, its the 1st lightbuckets customer image Ive seen, ive been waiting for that, and its impressive I must say.

We live in interesting times .

Hey Fred, thanks for your comments. Yes, the background colour noise is the upscaled RGB. What do you expect when trying to match 1050mm data to 4876mm! A much better option was to acquire RGB on the 24”, but with the moon still bright, I thought I’d use some data previously acquired. Again the star halos are due to the upscaled RGB. As mentioned in the original post, I need luminance data to make the stars look normal. The Ha data stars are very tight/small. I did think about blending the Ha data into other emission lines i.e. make the blue channel a blended combination of OIII + .2 Ha to simulate H-beta. However, I decided on the cleanest emission lines possible. May rework the data in due time. Thanks again.

Originally Posted by iceman

Wow, now that took me by surprise. I don't think i've seen anything quite like it from the ground before. A 24" scope, now that is something.

Simply amazing, Jase.

Remote imaging really delivers the goods, and at an infinitely small percentage of what it would cost to acquire that gear yourself.

Cheers Mike. Yes, the 24” RCOS @ Lightbuckets is a killer set up. You’re right, remote imaging continues to mature. I feel many people are still somewhat overwhelmed by the prospects of taking an image remotely. It’s actually no different to acquiring data on your own equipment; it still needs to be processed in a similar manner. A great image is not handed to you on a silver platter, that’s for sure. You still need to work for it.

Originally Posted by Tamtarn

A simply stunning image Jase. Never seen such detail in M27 before the outer detail is awesome. Thanks for sharing such a fine image.
24" RCOS - 4876mm F/L - 4.7hrs

We'll have to give it a go with the Skywatcher

Thanks Barb and David. Pleased you liked it. Its good to see a comparison of both true and mapped colour I guess. I was originally only going to post the mapped colour.

Originally Posted by Alchemy

everyone else seems to like the normal one, i actually prefer the mapped version.

the detail in the Ha emision is lovely within the nebula on both images... i presume its the same data.

i find the halos around the stars on the RGB one distracting to me,( i did note you could improve it with more data in your disertion at the start).
given your processing skills i think you could improve on the sky background noise too.

Cheers Clive. Each to their own regarding true or mapped colour preferences. I don’t think SHO palette is the best for this target. Yes, the halos and background noise are from the upscaled RGB. It is complex to match the different FL data, especially if it’s mediocre (which was the case with the RGB). I’ll be looking to take RGB from the 24” assuming I don’t lose interest on this target. Thanks again.