NGC 7769

NGC 7769 is a spiral galaxy located approximately 200 million light-years away in the constellation Pegasus. It is a member of the NGC 7771 group, a small galaxy group also containing NGC 7770, NGC 7771, and several smaller galaxies.

NGC 7769 is classified as a SA(s)c galaxy, indicating a spiral galaxy with tightly wound arms emanating directly from the nucleus and a relatively small bulge. The "s" notation suggests that the spiral arms are not clearly defined or segmented. The "c" classification denotes loosely wound arms.

The galaxy exhibits active star formation within its spiral arms, indicated by the presence of HII regions, which are clouds of ionized hydrogen gas that glow due to the radiation from young, hot stars.

NGC 7769 is interacting gravitationally with its neighbors, particularly NGC 7771. This interaction is likely causing distortion in the shapes of both galaxies and triggering increased star formation activity. Tidal tails and bridges of gas and stars have been observed connecting NGC 7769 and NGC 7771, providing further evidence of their interaction.

Studying NGC 7769 and its interactions with other galaxies in its group helps astronomers understand the processes of galaxy evolution, including how galaxies form, grow, and are influenced by their environments.