HD 220197 b is a fascinating world orbiting the star HD 220197, discovered back in 2018 using the clever radial velocity method at the ground-based Roque de los Muchachos Observatory with the sharp-eyed HARPS-N Spectrograph. This exoplanet isn’t just a distant point of light—it’s a real celestial neighbor whose presence was teased out by the subtle gravitational dance it performs with its star. Although we don’t have a catchy nickname for it yet, HD 220197 b invites you to imagine a mysterious world circling far beyond our solar system, silently tracing its path in a cosmic ballet. Its discovery highlights the incredible precision of modern astronomy and the excitement of finding new planets right in our galactic backyard.
