NED object is 3C 402; Reference is  1975MmRAS..80..105R

   Fig, 19. 3C 402. The large map has been smoothed to a resolution of 11
 arcsec x 15 arcsec . The two high resolution maps show the regions around the
 two bright galaxies, whose positions are marked. A further very faint
 component to the north was not detected here; see MKN.