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Contains:  NGC 4565, IC 3543, NGC 4562
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Needle Galaxy (NGC 4565), 


            Gary Lopez
Needle Galaxy (NGC 4565)

Needle Galaxy (NGC 4565)

Technical card

Resolution: 3768x2512

Dates:April 22, 2017April 10, 2019April 12, 2019

Orion 2" Skyglow Filter: 12x600" ISO400
Astrodon L Gen 2 E-series 31mm: 132x60" -15C bin 1x1

Integration: 4.2 hours

Darks: ~30

Bias: ~50

Avg. Moon age: 12.41 days

Avg. Moon phase: 30.95%

Bortle Dark-Sky Scale: 4.00 job: 2648220

RA center: 12h 36' 17"

DEC center: +25° 59' 13"

Pixel scale: 0.622 arcsec/pixel

Orientation: 151.218 degrees

Field radius: 0.391

Locations: Monterey Pines Observatory, Monterey, California, United States

Data source: Backyard


This is my final experiment combining DSLR RGB data with HDR luminance from a cooled CMOS camera. In this case the RGB was collected two years ago using a Canon 70D (unmodified) mounted on a 6"RC, and the luminance data was recently collected with an ZWO ASI1600MM Pro mounted on an 8" Newtonian. Once again, the luminance layer brings remarkable clarity to the original RGB image. I have provided the original DSLR image (Version B) for comparison. I believe that the detail of this image can be further improved with more and better luminance data. I collected 6 hours of luminance for this experiment, but only used the best 2 hours based on FWHM and star count. The seeing was very uneven.



Gary Lopez
License: None (All rights reserved)


  • Final
    Needle Galaxy (NGC 4565), 


            Gary Lopez
  • Needle Galaxy (NGC 4565), 


            Gary Lopez


Original DSLR RGB image

Sky plot

Sky plot


Needle Galaxy (NGC 4565), 


            Gary Lopez