Celestial hemisphere:  Northern  ·  Constellation: Coma Berenices (Com)  ·  Contains:  IC 3533  ·  IC 3543  ·  IC 3546  ·  IC 3571  ·  IC 3582  ·  NGC 4562  ·  NGC 4565  ·  Needle Galaxy
NGC4565 - Needle Galaxy, nazarine
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NGC4565 - Needle Galaxy

NGC4565 - Needle Galaxy, nazarine
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NGC4565 - Needle Galaxy

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Description

Needle Galaxy - taken on same night as my Horsehead Nebula - this one had more lights as i did not waste 30 minutes trying to figure out what was going wrong - only to find i had a cable snag which pulled out my ASCOM cable (just enough to disconnect).

i get some blotchiness which i would love to know how to remove - any help / advice would be appreciated - i used multiscalelinear transform on the linear data in the chrominance and luminance space and it certainly helped with the noise. I also used TGVDenoise - all did a good job and improved things - but ... if anybody can suggest a way to denoise better i would appreciate it

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  • NGC4565 - Needle Galaxy, nazarine
    Original
  • Final
    NGC4565 - Needle Galaxy, nazarine
    B

B

Description: tried a more aggressive noise reduction and chrominance removal after masking the galaxy and stars (range and starnet)

Not sure which version i prefer yet

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NGC4565 - Needle Galaxy, nazarine