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> What you're describing is the domain of a very, very small number of hobbyists with very deep pockets

Sort of. The telescope used for the Dumbbell nebula captures featured in the article was at worth around $1000 and his mount is probably $500. A beginner cooled monochrome astrophotography camera is around $700 and if you want filters and a controller another $500.

There are quite a few people in the world doing this, upwards of 100K:

https://app.astrobin.com/search

Various PixInsight videos have +100K views: https://youtu.be/XCotRiUIWtg?si=RpkU-sECLusPM1j-&utm_source=...

Intro to narrowband also has 100K+ views: https://youtu.be/0Fp2SlhlprU?si=oqWrATDDwhmMguIl&utm_source=...



Some even scratch of the bayer pattern of old cameras.




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