The star itself has an apparent brightness of 5.49, and because of this it is able to be seen from the Earth with binoculars, or with the naked eye if it is dark outside. 51 Pegasi is a yellow dwarf star that is thought to be around 7.5 billion years old, which is somewhat older than our Sun. 51 Pegasi is also 4-6% more massive than our Sun with more metal content. However, it is running low on hydrogen. 