Chi

Its story

Chi Pegasi is an old red giant on the asymptotic branch, near the edge of Pisces. Its reddish tone barely crosses the threshold of unaided vision, yet behind it lies a star eight billion years older than the Sun, swollen to fifty-three times its radius and radiating four hundred and thirty-five times its light from 368 light-years away. It approaches us at 46 km/s in silence, marking the closing chapter of a long stellar life.