I shot in a blue light pollution zone with full calibration. Dark sky, of course, makes a huge difference. I haven't figured out how to remove too many stars yet. But the result is quite decent, in my opinion.
Excellent! The stars are removed using the StarNET plugin. It can be downloaded for free from the official website, I believe, and integrated into PixInsight or Siril through the settings, where you select it as a file (there are videos on YouTube about this). However, I think for this photo, it's better not to remove them—it looks more beautiful this way. By the way—why do the stars have 6 rays instead of 4? Are those additional support struts or cosmetic diffraction spikes? Beautiful!
I know about StarNet, but I use StarXTerminator... Sometimes I don't really like it when there are too many stars in the image... No, there are definitely no spacers... I assume it's the too-long focuser that creates this effect. No matter how much I tried to figure it out, no other ideas came up). I even wanted to cut off part of the focuser to remove that ray in the middle, but then I decided to leave it as is. You could say it's a feature of my telescope, and I haven't seen anything like it from anyone else)
Yes, it does partially block useful light. Yes, it is quite long, extending about 4-5 cm into the tube. And of course, it also partially obstructs the mirror.
Stars can be dimmed in PixInsight using morphological transformation (MorphologicalTransformation), but before that, you need to create a star mask (Star mask) and apply it to the image.
27 Sep, 2025
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