Grayscale representation of the r-band emission from J125750.2+281013. Contours represent the Hα NET emission. The proximity of the massive galaxy CGCG 160-049 does not allow us to exclude that the gaseous asymmetry is due to tidal interaction. However we note that stars appear not accordingly displaced. Levels are −17.07 −16.89 −16.29 −15.87 −15.69 erg cm⁻² sec⁻¹ arcsec⁻² in log units, after three pixel Gaussian smoothing.