The discovery of a planet orbiting the post-red-giant phase star V 391 Pegasi at a distance of about 1.7 astronomical units (AU) is reported. The maximum radius of the red giant phase was ∼0.7 AU, whereas the distance of the planet during main sequence phase was ∼1 AU. This demonstrates that planets with orbital distances < 2 AU can survive the red giant expansion.
- R. Silvotti
- S. Schuh
- S. Zola
