NGC 7769
NGC 7769 is an unbarred spiral galaxy in the constellation of Pegasus. Its velocity with respect to the cosmic microwave background is 3855 ± 25 km/s, which corresponds to a Hubble distance of 56.85 ± 4 Mpc. It was discovered by German-British astronomer William Herschel on 18 September 1784.
The galaxies NGC 7769, together with NGC 7770 and NGC 7771, are listed together as Holm 820 in Erik Holmberg's A Study of Double and Multiple Galaxies Together with Inquiries into some General Metagalactic Problems, published in 1937. NGC 7769 also is listed as part of the five-member NGC 7771 Group, which contains the 3 galaxies from Holm 820, NGC 7786, and UGC 12828.
NGC 7769 is a LINER galaxy, i.e. it has a type of nucleus that is defined by its spectral line emission which has weakly ionized or neutral atoms, while the spectral line emission from strongly ionized atoms is relatively weak.