paul Posted November 25, 2021 Share Posted November 25, 2021 (edited) My original lengthy dataset was too soft focus (when changing to lower gain I didn't up the exposure time in the autofocus routine - often resulting in a poor final focus). I started again using a longer auto-focus routine which gives me sharp stars but eats up my imaging time. After several patchy nights I've 3 hrs Ha and 1.5 hrs Oiii. That's not enough to reduce the noise to levels I'm happy with but the data is good so far. It's probably as much as I will do on this target for this year. I may have hit 11 on saturation. Edited November 25, 2021 by paul 8 Quote Link to comment Share on other sites More sharing options...
Marmot Posted November 25, 2021 Share Posted November 25, 2021 Although I can’t comment on the technical stuff, I do appreciate what is a great image. Well done. 1 Quote Link to comment Share on other sites More sharing options...
Dmack1 Posted November 25, 2021 Share Posted November 25, 2021 Thats lovely - super level of detail in the bubble and its immediate surrounds. 1 Quote Link to comment Share on other sites More sharing options...
paul Posted November 25, 2021 Author Share Posted November 25, 2021 27 minutes ago, Dmack1 said: Thats lovely - super level of detail in the bubble and its immediate surrounds. Thanks, this is the first year I have had the right combination of gear to use all the fl of my scope and make the most of the mirror's quality. I'm still learning the ropes with NB. I just need the weather to cut me some slack! 1 Quote Link to comment Share on other sites More sharing options...
Astrobdlbug Posted November 25, 2021 Share Posted November 25, 2021 HI Paul, great FOV on the bubble - in terms of learning more on NB processing side at least, if you use Pixinsight, I found this website explained some interesting ways to combine narrowband channelshttps://thecoldestnights.com/2020/06/pixinsight-dynamic-narrowband-combinations-with-pixelmath/ Bryan 1 Quote Link to comment Share on other sites More sharing options...
MarkAR Posted November 26, 2021 Share Posted November 26, 2021 Nice image, lovely detail around the bubble. It's a little over saturated and the fainter outer nebulosity does look a little grainy. Processing can be tricky at times, best to use smaller gentle tweaks. Quote Link to comment Share on other sites More sharing options...
Bob-c Posted November 26, 2021 Share Posted November 26, 2021 A nice image, well done. Bob. 1 Quote Link to comment Share on other sites More sharing options...
paul Posted November 26, 2021 Author Share Posted November 26, 2021 4 hours ago, MarkAR said: Nice image, lovely detail around the bubble. It's a little over saturated and the fainter outer nebulosity does look a little grainy. Processing can be tricky at times, best to use smaller gentle tweaks. Thanks. I'm the first to admit its noisy 😄 Its over stretched in the shadows and the saturation is a over the top! (Note to self,- don't post at 2am 😄). 16 hours ago, Astrobdlbug said: HI Paul, great FOV on the bubble - in terms of learning more on NB processing side at least, if you use Pixinsight, I found this website explained some interesting ways to combine narrowband channelshttps://thecoldestnights.com/2020/06/pixinsight-dynamic-narrowband-combinations-with-pixelmath/ Bryan Thanks, I have used those guides and they are good. I've made crib sheets for processing sequences that have worked but when they don't its hard to see where I went wrong particularly if it was a poor decision I made in the early phases. More targets and practice will make the debugging easier and the need less. 1 Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.