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Contains:  NGC 5195, Whirlpool galaxy, M 51, NGC 5194
Getting plate-solving status, please wait...
M51 LRGB, 


            Christopher Gomez


Technical card

Resolution: 3388x2712

Dates:Feb. 27, 2017March 2, 2017March 3, 2017March 28, 2019March 30, 2019April 2, 2019

Astrodon Blue Tru-Balance E-series gen 2: 6x600" -10C bin 2x2
Astrodon Green Tru-Balance E-series gen 2: 6x600" -10C bin 2x2
Astrodon Luminance Tru-Balance E-series gen 2: 133x600" -10C bin 1x1
Astrodon Red Tru-Balance E-series Gen 2: 6x600" -10C bin 2x2

Integration: 25.2 hours

Darks: ~30

Flats: ~30

Bias: ~30

Avg. Moon age: 13.98 days

Avg. Moon phase: 21.73% job: 2627596

RA center: 202.480 degrees

DEC center: 47.218 degrees

Pixel scale: 0.590 arcsec/pixel

Orientation: 91.663 degrees

Field radius: 0.356 degrees

Locations: Home, Gulf Breeze, Florida, United States

Data source: Backyard


After two years have gone by since I've made the switch over from DSLR to monochrome CCD, I came back to one of my favorite galaxies! I imaged this galaxy early hack when I fist got my camera and since then, I have learned a lot, my workflow has changed, and have added a motorized focusser. I find I can really dial in the focus visually by looking at my images and that has lead me to a great improvement in my sub frame acquisition quality.

Looking at the older data that I had, either the seeing was not as great / focus was off, and/or the new camera high had me jaw dropped at what ever image came in that I really wasn't picky. I decided to revisit and see if there was any improvement I could make and after the first Lum sub came in I said I have to reshoot this target!

This is a combination of the integration of my old data with the new data acquired recently. the total Lum data was use for the entire background and tidal waves and the sharpest new data was used and masked in for the galaxy details.

Hope you enjoy!



Christopher Gomez


  • M51 LRGB, 


            Christopher Gomez
  • Final
    M51 LRGB, 


            Christopher Gomez


Levels adjustment

Sky plot

Sky plot


M51 LRGB, 


            Christopher Gomez