NUMBER@1 Pegasi is a yellow dwarf star estimated to be NUMBER@2 billion years old , somewhat older than the Sun , NUMBER@3 % more massive , with more metal content and running low in hydrogen .

NUMBER@1 Pegasi is a yellow dwarf star that is thought to be around NUMBER@2 billion years old , which is somewhat older than our Sun . NUMBER@1 Pegasi is also NUMBER@3 % more massive than our Sun with more metal content .
