Kinch

Normally my NB images take me a week or quite often more to complete, start to finish. This is one of the fastet I have ever done - started Wednesday night and processing completed on Friday afternoon. Two x full night's data did the trick nicely! A total of 11 hours & 40 mins. (Full info & higher resolution on my web site).

Well done Richard - looking good 👍. Good to know that the filter is now "at work". Interesting for some of us 'old school' guys to see the result when using this type of filter.........such short overall exposure too!

I have done a little bit of experimenting ....I hope you can go have a look on Telescopius...where I was having some conversation with Rodd. (https://telescopius.com/pictures/view/64641/deep_sky/IC/1311/bright-nebula/by-kinch?revision_id=91734) I hope the link is allowed and left.

Hi Paul.....thanks for commenting. This is with the Tak FSQ130ED and FLI ML16200 camera. Very shortly, I am going to fire up PixInsight again and this time, I will try adding the NB data to the RGB image.......if it makes an interesting change and is OK, I will post that also. While out walking the dog just now....I was thinking about it and wondering if it would be better or worse

Originally planned as an SHO image - but there was little or no OIII in this area. Ended up as a bi-colour (HSS=RGB) with RGB imported into the stars only. IC 1311 is the small open star cluster in the top right quadrant. Full details on my web site.

Nice one 👍

Thanks for the comment......I like to leave a 'touch' of green when I can.....I think it helps the depth of an image. This time, I more or less had to, because otherewise the Crescent looked too blue......whereas, for this palette, Blue/Green looks much better.

Martyn..........thanks so much for that. Glad you enjoyed the higher resolution image - I go back from time to time to this (and others that I have on the web site) just to "wander" around in deep space and try get my head around what is out there

Robin & Mark.....thanks for the comments guys. Yes.....sometimes on wide views we get a different perspective on things that we have been always looking close in on. I think, once we just don't go for colour blobs, but try to resolve the detail....even on very wide FoV images....they can prove to be very interesting.

Thanks Martyn. No worries....I make my images for Pixel Peepers 🤣.......I am afraid I am one myself! If you do not know it already....you must click on 'Download full size' to actually see the full res image in telescopius.....then when you have the little + sign....you can click on the image again to get it.....the one I put up is 4470 x 3600.

Thank YOU Richie....I appreciate the comment.

By the way....if you get to look at the high resolution version.....you might happen upon the Soap Bubble - not very strong, but there. Also.....this tiny little fella; Abell 69 👀

I could not upload this image earlier today - not sure if it will go now until I hit the "Submit" button. It is related to my prior posted image - which is a crop from this one. I could not use the same colour palette on this full one as Crescent came out blue....whereas Blue/Green is more in keeping with the Hubble Palette end colour. It is nice to look at this one in high resolution....you can find the largest image on Telescopius....uploaded today, so should not be too hard to find.

Arrgghhh.....I'll have to stop posting.....I am doing this for fun....I don't need the pressure 😰 ......just kiddin'....thank you so much for saying that Ian.

Further to my last post....I don't seem to be able to upload another image....I must check my quota! The full image - hi resolution - can be found on my web site (url as per my signature).

Hi Martyn, thanks for the comments. My initial hesitation with the full image was due to the Hubble Palette mapping. I am used to seeing the Crescent Nebula in Red/Salmon colours so when it comes out in Green & Blue in the final full image, it really is off-putting. But, since Ha is mapped to green and OIII mapped to blue....then one should not expect anything different! When I did the crop above, I was able to play with the colours to make that section look more pleasing to the eye (for me anyway). When I did that, The Crescent (in the full image - that you have not seen yet) comes out blue.....and I could not go with that. So....bottom line: the above image is fine as is....no more exposure time needed.The full image will show this area more green (again, overall ok without needing more data). This more green full image just took me some time to get used to ... but I will put t up on my website later and leave a link (and thumbnail version here)....to explain better.

Agree 100%. 👍

This is a crop from an image I am presently working on. Just cannot decide (for the full image) if I need extra data or not. It is the overall colour though that needs attention. For this area though....the data looks fine (I think) : Ha-36 subs, SII-32 Subs & OIII-31 Subs (all 10 minutes).

There really can be no answer from us looking at two JPEGs. If you are doing long subs in excellent conditions - then, as you see, a bunch of them will not pull out too much more detail. You will get a better SNR with the stack but if there is not too much noise in the single sub.....well there is only so much that stacking will do with that too. Only to be expected I think........but each target will be different. I have often planned many hours of subs on targets only to stop at half my planned amount - simply because I knew many more hours would not make a huge difference. Now, (you may have noticed from my posts), I test what I have from time to time....after 3 hours of data; after 5 hours of data.....whenever it is convenient to have a look (and not at any set points). Sometimes it is just not worth getting say 10 + 10 + 10 hours of SHO.....but you may find your time is better spent with e.g 8 hours Ha + 12 hours SII + 10 hours OIII.....or whatever....depending on the signal from the object you are shooting. I don't necessarily agree that the single sub here is clearer and deeper. You say you have just done STF. The stacked image I would imagine will lend itself better able to be processed than the single sub....I am sure the fine detail is there to be drawn out. Just perhaps it is a fact....that you did not need 10 hours of subs to get it! Have fun and enjoy the journey. Perhaps it will be clear again for me tonight (I have 3 different images needing more data)....but in the meantime I have lots of work to do in the garden!

🙄...It is looking that way...but I will resist the temptation (I hope) until I can plan it all properly.

Thanks for the comment but I made a big boo boo in one sense..... I had not planned to do more than two images here but then started that 3rd last night. I could have, had I gone about it right, done quite a big mosaic here.....maybe next year! As it is, the 3 images come together like this (Ha only).....

ha ha Dan....so am I.....but a long way to go yet 😀

Thanks Mark.....even though it is 'early days'.....I just had to run the subs through a minimum process to see what things looked like. 😏

Yes - short nights and where I am - still quite warm during the night at about 22°C to 25°C (warmer than that even when I start things up). I have not moved to CMOS - I will stick with CCD as long as I can. One important factor (in my mind) is cooling the CCD and I have to admit that spending a lot of money on a FLI camera has worked really good for me. Even now I am still able to run the CCD at -30°C (Avge 90% on the TEC). If it gets any warmer though....I won't push it as I am more used to seeing TEC @ 70% to 80%..........but I do notice the noise reduction in the subs by being able to cool to -30° rather than say -20°.

I have several unfinished images on the go - and started another last night. 🙄 In the bright moonlight, I simply wanted to continue using the Ha filter - not what was needed to finish off other images I am working on. So - interesting though it is - it is just 3 hours of data and as yet a long way from finished. Still........worth a look! 👀