MK 421 (Markarian 421)

13.5 mag; RA: 11h 04m 27.3s Dec: +3812'32" (UMA)

and PGC 33453 (next to core of MK 421), UGC 6140 (left, 16.7 mag), PGC 33475 (far left, 17.2 mag), PGC 213780 (upper left, 17.1 mag), PGC 33437 (right, 16.4 mag)

MK 421

MK 421 (Markarian 421)