NGC 4565

NGC 4565
2

NGC 4565

NGC 4565 (also known as the Needle Galaxy or Caldwell 38) is an edge-on spiral galaxy about 30 to 50 million light-years away in the constellation Coma Berenices.
SPECIFICATIONS
Telescope ..........................................................................................................................................................................................................................
Planewave CDK24
Camera ..........................................................................................................................................................................................................................
QHY 600M
Location ..........................................................................................................................................................................................................................
El Sauce Observatory, Chile
Date of observation ..........................................................................................................................................................................................................................
2023
Filters ..........................................................................................................................................................................................................................
LRGB
Processing ..........................................................................................................................................................................................................................
PixInsight and Photoshop
Credits ..........................................................................................................................................................................................................................
Petri Kehusmaa / Telescope Live
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Comments

Hello Petri,
I don't have a big "Telescope Live experience" but I saw your NGC4565 processing, it appears that I made the same processing last week, I just published it ( https://telescope.live/user/30248 you will see).
Perhaps we could share our practice and experience :-)
- I love what you did on the stars, they are very sharp and accurate, can you share what you did in particular for that results ? I did some deconvolutoin in linear but I am far from your precision
- on the other hand, you could have get rid of the "donuts" that comes from a bad flat that you have on the background, if you're interested, I can share what I did on my side
Clear skies
Jean-Baptiste

Hello Jean-Baptiste. Sure I can tell you my process. I noticed the dust donut after I published the image. On my computer I couldn't see it but here it's clearly visible. For the stars and overall sharpening I use BlurXTerminator in Pixinsight. Then in Photoshop I have Pro Digital Software plugin called Starspikes Pro 4. With that you can tidy up stars very nicely. And finally I have script in PixInsight called StarReductionMethod. With that you can make some final star demphasis and get the target out better. Usually I'm using all these during my image processing pipeline. What's you trick for the donuts?