9 Pegasi

9 Pegasi is a star located in the constellation Pegasus. It is a blue-white hued star of spectral type B3V, indicating it is a main sequence star. Its apparent magnitude is approximately 5.16, meaning it is faintly visible to the naked eye under ideal viewing conditions. Parallax measurements suggest a distance of approximately 410 light-years from Earth.

9 Pegasi is a relatively young star, considerably hotter and more massive than the Sun. It is known to be a Be star, characterized by its rapid rotation and the presence of a circumstellar disk of gas, resulting in emission lines in its spectrum. The "e" designation in "Be" stands for "emission." The exact properties of the circumstellar disk, such as its density and temperature, are subjects of ongoing study.