Galaxies or star and galaxy?

https://www.legacysurvey.org//viewer/?ra=156.7500&dec=39.1343&layer=ls-dr9&zoom=15&sga-parent&sga

There is a parallax in gaia for the bluish object. So I think it’s a star…

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Parallax is within error of 0 for the blue object and has no measurable proper motion. Best guess is a quasar.

Thank you. I see now that the redshif of the two dots is different, so probably they are not connected

Highly unlikely. Blue object is probably quite a bit closer.

I’ve edited my previous post before seeing your answer. I see that they have different redshift