Astrobdlbug Posted March 10, 2021 Share Posted March 10, 2021 As most of the winter nebula start to sink westwards and the lighter evenings are accelerating towards us plus very uncooperative weather - it would appear the imager within us can do some desparate things to achieve an image -any image...... On Monday evening I as about to watch Universtity Challenge - looked outside and saw stars - immediatelly forgot about TV and headed out to the POD - booted up the RPi and powered all the equipment and slewed over to IC410 - Tadpoles etc.. Focussed and got guiding kicked off and it was happy to use last calibration so started guiding straight away - so was into first Ha 300s sub probably within 10-15mins of opening up the POD. Got my first sub completed, but a rolling bank of cloud made further progress impossible - so this image is based on a 5minute sub, yes only 5minutes .... Earlier in the season I imaged this area IC410/IC405 with the samyang rig, so wide field, so a full Ha/Sii/Oiii colour image, albeit at 6.4arcs/pixel. so I used the single Ha sub as a luminance and upscaled and registered the colour Samyang image onto the Ha image, that is 1.45arcs/Pixel. Fair bit of denoise and sharpening but this is the result. Its still got noise - of course as its 5minutes - and the stars are a bit over sharpened - but hey as I said a desparate last image of the season, Its more a testament to the processing tools we now have available to us that can make such a short sub into such an image, such is progress.. Topaz denoise was used in the processing of this image and therefore what I have done can be viewed as using latest processing technology to create a credible image or a corruption of the data I aquired in such a short time - my opinion is to use such advanced tools in moderation - on this image I have not really, but there are many differing opinions regards this type of 'AI' tool. Bryan So Here is the original Auriga widefield This is the single 300s Ha sub And this is the combined image 7 Quote Link to comment Share on other sites More sharing options...
Carastro Posted March 10, 2021 Share Posted March 10, 2021 That's come out well. I have done similar of late. Combining my Dark shark data from the Samyang widefield with the telescope image I took in 2019, made a huge difference to the improvement. Carole 1 Quote Link to comment Share on other sites More sharing options...
Dmack1 Posted March 10, 2021 Share Posted March 10, 2021 Thats a super result from a pretty inauspicious beginning. I know how you feel about the winter nebs dissapearing. I'm desperate to get "just one more image" with my new 2600 mc on my 80ED before I start lugging out the old 8" LX200 GPS on its wedge (not sure my backs up to it anymore!) with its horrible coma and move into Galaxy mode. 1 Quote Link to comment Share on other sites More sharing options...
Astrobdlbug Posted March 10, 2021 Author Share Posted March 10, 2021 2 hours ago, Carastro said: That's come out well. I have done similar of late. Combining my Dark shark data from the Samyang widefield with the telescope image I took in 2019, made a huge difference to the improvement. Carole Thanks Carole, yes these mixed focal length combinations and processing techniques have been a good way to get through these long periods of not being able to image - kind of feel I've done something - although at the moment, despite weather tonight, the forcast seems to indicate a window of 3-4 hrs tommorrow evening in my region - so might be able to create a 'real' IC410 Bryan 1 Quote Link to comment Share on other sites More sharing options...
TerryMcK Posted March 11, 2021 Share Posted March 11, 2021 Very nice image Bryan - great on a 5 minute sub. I really like Topaz Denoise AI especially with its recently introduced 4 method split screen preview. I too was watching UC and was amazed by one of the students who knew all sort of subjects and he answered fractions of a second after Jeremy had started asking questions. 1 Quote Link to comment Share on other sites More sharing options...
MartinS Posted March 11, 2021 Share Posted March 11, 2021 18 hours ago, Astrobdlbug said: yes these mixed focal length combinations and processing techniques have been a good way to get through these long periods of not being able to image Another very nice image, your on a roll Bryan. Merging data from separate sessions and even different cameras is not something I have tried yet, it is in my to do list. Do you know of a good guide and what is the “rule of thumb” criteria when embarking on such a journey? 1 Quote Link to comment Share on other sites More sharing options...
Astrobdlbug Posted March 11, 2021 Author Share Posted March 11, 2021 @MartinS I’m not so analytical - I just try things out sometimes it works sometimes it doesnt the magic is an application called RegiStar - it can take an image from a different camera telescope/lens combination with different orientation and/or resolution and can register to a base image - that can be Lum or Ha or another colour image - it can then crop and match- its really quite clever I bought it a few years ago when I used it to register and combining RGB integrations matching different focal length images using this tool works very well Bryan 1 Quote Link to comment Share on other sites More sharing options...
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