Two color quasar?


https://www.legacysurvey.org//viewer/?ra=139.4605&dec=29.0268&layer=ls-dr9&zoom=16

It’s a known QSO ( in Simbad 2MASS J09175053+2901369** – Quasar) But why two distinct color areas? Overlapping with another object ?

Nice find! Based on the Gaia observations (under the “Imaging catalogs” menu), it’s two objects, the red one with 0 motion, and blue one with significant proper motion (a foreground star).
cheers,
–dustin

Thanks a lot: just 0.9 arcsec separation!