alan4908 Posted February 13, 2018 Share Posted February 13, 2018 My first attempt at NGC281 was with my ED 80 and taken with my colour camera - and I definitely thought the result looked liked the Pacman. So, whilst attempting to image this object with my Esprit 150, I thought I'd end up with another Pacman, albeit somewhat more detailed. However, the more I looked at my narrowband result, the less I decided it looked like the video game character. I think this is because my eye was drawn to the various nebula details, which tend to be absent in a broadband approach but reveal themselves with a narrow-band technique. So, for this bi-colour image, I decided to try to enhance the details by experimenting with colour contrast curves and the Pixinsight script DarkStructureEnhance. The image represents 9 hours total integration time. (If you are still interested in seeing the Pacman, then you need to rotate the image by 180 degrees). Alan LIGHTS: Ha:8, OIII:10 x 1800s, DARKS:30, FLATS:40, BIAS:100 all at -20C. Link to comment Share on other sites More sharing options...
iansmith Posted February 13, 2018 Share Posted February 13, 2018 Nice, I like the faint nebulosity around the edge of the nebula proper. There's a nice 35 effect in the centre as well. Cheers, Ian Link to comment Share on other sites More sharing options...
alan4908 Posted February 13, 2018 Author Share Posted February 13, 2018 7 hours ago, iansmith said: Nice, I like the faint nebulosity around the edge of the nebula proper. There's a nice 35 effect in the centre as well. Cheers, Ian Thanks for the comment Ian. Ideally, I'd like to have captured a little more faint nebulosity but this target has now disappeared below my local horizon, I guess that is a downside of attempting to image 7 targets simultaneously. I see what you mean about the 3D effect, I hadn't noticed it until now. Alan Link to comment Share on other sites More sharing options...
astro mick Posted February 13, 2018 Share Posted February 13, 2018 Very nice indeed. Well done. Mick. Link to comment Share on other sites More sharing options...
alan4908 Posted February 14, 2018 Author Share Posted February 14, 2018 10 hours ago, astro mick said: Very nice indeed. Well done. Mick. Thanks for the comment Mick. Alan Link to comment Share on other sites More sharing options...
Filroden Posted February 14, 2018 Share Posted February 14, 2018 That’s spectacular. I love the colour graduation and how it emphasises the fainter detail within the centre. Link to comment Share on other sites More sharing options...
alan4908 Posted February 14, 2018 Author Share Posted February 14, 2018 2 hours ago, Filroden said: That’s spectacular. I love the colour graduation and how it emphasises the fainter detail within the centre. Thanks Ken - yes, I was using contrast curves in the central region separately for the RGB channels in order to maximize the details and also (hopefully) end up with a colour that I liked. Alan Link to comment Share on other sites More sharing options...
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