[2] This object is located at a distance of 23.3 megaparsecs (76 million light years) from the Milky Way[1] and has a peculiar aspect, with several plumes and streams of irregular shape that explains its inclusion on Halton C. Arp's Atlas of Peculiar Galaxies with the number 222, being classified as a "Galaxy with amorphous spiral arms".

[4] In addition to this, 23 objects – candidates to be young globular clusters formed in the collision – can be found in this system.

[6] In November 2021, scientists announced the discovery of a pair of supermassive black holes in NGC 7727, detected with the Very Large Telescope's multi-unit spectroscopic explorer (MUSE) at the European Southern Observatory.

The pair are among the closest confirmed supermassive black holes to Earth at about 89 million light years away.

The black holes will eventually merge in the next 250 million years, producing powerful, low-frequency gravitational waves in the process.