Possible grav lensing arc alongside two distant galaxies?


Well, I think that a lensed arc would be a deeper blue. This has the white blue of starforming area. It doesn’t look as blue in SDSS

Here is a verified lens arc.



I have forgotten how to post an image, how do I get the robot information back?

Maybe, but since these are false colour images and the arc overlaps with the hazy light from the galaxies, I would not put too much faith in the visual appearance - which is why I put it up as a possibility.