ARG0000fa1 - A triple?
Separation is quite big, so this could be a triple or random arrangement
VLA FIRST - centered at 12 34 58.47 +53 18 44.8
NVSS ( on the left ) , and WENSS: Westerbork Northern Sky Survey ( on the right ) 0.3 degree field or ~ 18 arcmin
Anyway, coordinates of the suspected center ~12 34 58.47 +53 18 44.8
by DocR scientist
Yes, indeed, this is quite a triple. Likely one of the largest sources known. Image below shows SDSS identification, faint pair of galaxies. Photometric redshifts only, with warning about photometry. north: z=0.62; south: z=0.43. North th is SDSS 123458.46+531851.3.
For full size image, see http://umn.edu/~larry/RGZ/ARG000fa1.jpeg
by HAndernach scientist, translator
yes, we had seen this one in 2012; SDSS J123458.46+531851.3, z_ph~0.62, size 11.4' or 4.3 Mpc, 3rd-largest source I know of!