Classification Note: The galaxy has a well-defined core, with a very bright central region, and a considerably fainter outer region. Most elliptical galaxies have a smoother brightness gradient, hence my decision to add "pec" to its classification; Corwin essentially agrees, but points out that ...
In the widely accepted ‘unified model’1 solution of the classification puzzle of active galactic nuclei, the orientation of a dusty accretion torus around the central black hole dominates their appearance. In ‘type-1’ systems, the bright nucleus is visible at the centre of a face-on torus...
for objects at such distances we should take into account the Universal expansion during the time it took their light to reach us. Doing that shows that the galaxy was just over 460 million light years away at the time the light by which we see it was emitted, about 470 million years ag...