Image Processing Techniques

Siril SPCC error: "Catalogue error: no stars identified" despite downloaded catalogues

Hi everyone, ​I am getting an error message while trying to run the SpectroPhotometric Color Calibration (SPCC) tool in Siril. The process halts and displays the message: "Catalogue error: no stars identified". ​I have already downloaded the required astrometric and photometric star catalogues to my local computer. Specifically, I have downloaded all the data tracks visible from my location here in Italy (omitting only the Magellanic Clouds). ​This is the first time I have encountered this issue since I started using Siril, and it has previously always worked without a hitch on my other images. ​Could anyone help me understand what might be causing this error and how I can go about fixing it? ​Thanks in advance for your help!
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Image Processing Techniques

Some questions about starnet++?关于starnet++的一些问题?

May I ask if Starnet ++ can generate two files when performing star point removal like starless starnet++在进行星点移出时能像starless一样生成两副文件吗 What I mean is to generate a pure star point file and a pure nebula file 我的意思是生成一副纯星点文件与一副纯星云文件
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Image Processing Techniques

天文后期软件

我是个天文新手,请各位大佬们给我推荐一个天文后期软件,谢谢
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Image Processing Techniques

Tried editing m13 with siril what should I inprove?

This is what I came with any feedback and improvements? Bortle 7 232 mins S50. My goal was to get the colours out of the stars and to see as many stars as possible
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Image Processing Techniques

How to get detail out of a planetairy nebula?

With seestar s50 most of the time a object like caldwell 15 will be just a blob of light, is there a way to get detail of it should i have a very long exposure? Or just a proper workflow on siril?
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Image Processing Techniques

What is the process that I need to go through to get flats, darks, and biases on the SeeStar S30 Pro?

I am trying to begin using the Siril stacking app but apparently I need to have all of these different kinds of images. Obviously, lights are the most simple so I don't need any guidance for that. I've watched videos on every type, but the vast majority were not relating to smart telescopes. I would really appreciate some help to becoming a better astrophotographer!
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Image Processing Techniques

Generative AI is still rampant

People dosent know the difference between AI post processing (typical blurrX noiseX and so on) and chat gpt (or whichever LLM). There are still plenty of AI generated images being posted. Puting an image in any generative AI and say please donoise this image is not post processing! If you want to learn processing, there is awesome free tools and ressources out there. If not, please do not lie about it and be lucid that images after being "processed" by generative AI are not yours anymore. Even if you spend 10h integrating a target, you could have fed the AI a piece of wood and ended up with a picture of a DSO...
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Thought List
1格林威治中国获奖专访图文第5期:张衍光
2《星热爱,永传承:从双筒镜到深空设备,SEESTAR 伴我与孩子共赴星空之约》
3这是什么问题?数据来自see starS30Pro
4从一个人的星空,到一群人的选择:塞罕坝天文台里的ZWO振旺
5⚠️Read my comment! 6-panel Clamshell Nebula - A great challenge for skilled and ambitious Seestar users
6从苏州到承德,用Seestar为社团“造”一座远程天文台
7Siril SPCC error: "Catalogue error: no stars identified" despite downloaded catalogues