Celestial hemisphere:  Northern  ·  Constellation: Coma Berenices (Com)  ·  Contains:  IC 3571  ·  NGC 4562  ·  NGC 4565  ·  Needle Galaxy
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NGC 4565 Needle Galaxy, ALang
NGC 4565 Needle Galaxy
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NGC 4565 Needle Galaxy

Revision title: Further Sharpened

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NGC 4565 Needle Galaxy, ALang
NGC 4565 Needle Galaxy
Powered byPixInsight

NGC 4565 Needle Galaxy

Revision title: Further Sharpened

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Description

LRGB masters calibrated and stacked using WBPP tool in Pixinsight.  Calibration with flats, dark-flats, and darks, binning as appropriate for Lum (bin 1) and RGB (bin 2).  While linear, applied to masters BlurXterminator and NoiseXTerminator.  Note that galaxy detailed significantly brought out using "Nonstellar then Stellar" setting in BXT.  Nonstellar FWHM determined manually.  Color calibrated with PCC and contrast enhanced with both LocalHistogramEquilization  and UnsharpMask.  

Not sure where the diffraction spikes came from in the optical train, but decided to keep them for artistic reasons.

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Revisions

  • NGC 4565 Needle Galaxy, ALang
    Original
  • Final
    NGC 4565 Needle Galaxy, ALang
    B

B

Title: Further Sharpened

Description: Using star mask, unsharpmasked and reduced noise 2nd time with NoiseXTerminator

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NGC 4565 Needle Galaxy, ALang