Padraic M Posted July 22, 2021 Share Posted July 22, 2021 This is NGC7023 aka the Iris Nebula, a bright reflection nebula in Cepheus. NGC7023 refers to the open cluster inside the nebula. The entire is also known as Caldwell 4. Imaging is a total of 3 hours RGB, with a small amount of Luminance added, captured from Bortle 2 Kerry Dark Sky Reserve on 20th July but unfortunately with no astro darkness. Imaging: Esprit 80, ASI160MM Pro @ -20C, gain 139, Baader RGB filters. Guiding: Starwave 50mm, ASI290mm Mini, HEQ5 Pro belt mod. Capture control: NINA, PHD2, SharpCap PA. Processing: APP, Gimp, Noise Ninja. 6 Quote Link to comment Share on other sites More sharing options...
PeterBolt Posted July 22, 2021 Share Posted July 22, 2021 48 minutes ago, Padraic M said: This is NGC7023 aka the Iris Nebula, a bright reflection nebula in Cepheus. NGC7023 refers to the open cluster inside the nebula. The entire is also known as Caldwell 4. Imaging is a total of 3 hours RGB, with a small amount of Luminance added, captured from Bortle 2 Kerry Dark Sky Reserve on 20th July but unfortunately with no astro darkness. Imaging: Esprit 80, ASI160MM Pro @ -20C, gain 139, Baader RGB filters. Guiding: Starwave 50mm, ASI290mm Mini, HEQ5 Pro belt mod. Capture control: NINA, PHD2, SharpCap PA. Processing: APP, Gimp, Noise Ninja. Beautiful 👍 1 Quote Link to comment Share on other sites More sharing options...
Padraic M Posted July 22, 2021 Author Share Posted July 22, 2021 Thanks Peter! Very pleased with it. 1 Quote Link to comment Share on other sites More sharing options...
MarkAR Posted July 23, 2021 Share Posted July 23, 2021 Lovely shot, dark clouds starting to show really well. 1 Quote Link to comment Share on other sites More sharing options...
Dmack1 Posted July 23, 2021 Share Posted July 23, 2021 Super image Padraic. Must have been nice to get down there, astro dark or not! Have you heard if the star party is likely to be on this year? Quote Link to comment Share on other sites More sharing options...
Padraic M Posted July 23, 2021 Author Share Posted July 23, 2021 Thanks David. No word on the star party this year - I'd imagine it's unlikely but will keep an ear open anyway. Great skies here last week but not good the last few days. Super weather! 1 Quote Link to comment Share on other sites More sharing options...
gpowers Posted July 24, 2021 Share Posted July 24, 2021 I love the IRIS Nebula, I have been imaging this target ever since i started the hobby about a year ago, I need to let go, i always think i can get a better image of it next time i go out. I love this image, every time i see a great image of the Iris Nebula i just have to have another go, you've done me no favours. 🖖 1 Quote Link to comment Share on other sites More sharing options...
Padraic M Posted July 25, 2021 Author Share Posted July 25, 2021 @gpowers terribly sorry! This is my first time imaging Iris and I really like it - it's very different to the other nebulas but it's more like a sapphire than an Iris! Quote Link to comment Share on other sites More sharing options...
peter shah Posted July 26, 2021 Share Posted July 26, 2021 beautiful shot 1 Quote Link to comment Share on other sites More sharing options...
P Holdsworth Posted July 26, 2021 Share Posted July 26, 2021 Great shot Padraic ......lovely colour and detail 👍 1 Quote Link to comment Share on other sites More sharing options...
Padraic M Posted July 26, 2021 Author Share Posted July 26, 2021 9 hours ago, peter shah said: beautiful shot 8 hours ago, P Holdsworth said: Great shot Padraic ......lovely colour and detail 👍 Thanks both. 1 Quote Link to comment Share on other sites More sharing options...
Carastro Posted July 28, 2021 Share Posted July 28, 2021 That's very good for just RGB, would love to see Luminance added to this. Carole 1 Quote Link to comment Share on other sites More sharing options...
Padraic M Posted July 28, 2021 Author Share Posted July 28, 2021 Thanks @Carastro, I did take some L data (25mins) but it tends to wash out the RGB colours, and in particular I lose those dark clouds as the detail isn't really there in the L. I'm assuming that I just haven't got enough L data to form the basis of an LRGB image. I may come back to it if we get another clear night, and grab a few more hours. 1 Quote Link to comment Share on other sites More sharing options...
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