How many galaxies can you see in this image?

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Andy Wray avatar
I tried to process this image to maximise the number of galaxies that I could see whilst still having an OK image of M51.  How many galaxies in total can you see?


Full size image here:

M51
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Matthias Titeux avatar
Hi,
I would say 10, maybe 11.
Good job anyway !
Best
Matthias
Wim van Berlo avatar
Try the annotation script in PI. Activate both the pgc and sdss r7 catalogues. That should give you at least several dozen more.

cheers,

Wim

https://aladin.unistra.fr/AladinLite/?target=13%2029%2049.299%2B47%2013%203.75&fov=1.40&survey=P%2FDSS2%2Fcolor
Michael von Berner-Purgstall avatar
2 - M51 and it's interacting partner NGC 5195.
😉
Geoff avatar
At least 20
Joe Alexander avatar
I'm with Geoff - easily 20, probably more with a little effort.

Joe

PS - And my old eyes aren't what they used to be!
Andy Wray avatar
FWIW:  there are probably more than 40, but that is because there is a galaxy cluster at the top of the image (just to the left and up from the brightest star).  

I just love delving into the background of images to see what I have missed.
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