Gliese 486, the star in the system, was observed using NASA's Transiting Exoplanet Survey Satellite, which was built to seek out distant worlds.
IAU settled on 'Bibha' and 'Santamasa' at the end of the global 'NameExoWorlds' contest organised during its centenary celebrations.
Star system 30-light-years from Earth stumps astronomers, defies past theories about planet formation
Scientists think a second planet also orbits the star, and a third, that was ejected from the system billions of years ago.
Exoplanet discovery: Watch to know more about inside world of Trappist-1 star and its orbiting planets
Nasa’s Spitzer Space Telescope has found seven Earth like exoplanets in orbit around a single ultracool white dwarf star.
Exoplanet discovery: Seven Earth-like planets orbiting Trappist-1, but exactly what is an exoplanet?
Seven Earth-like planets orbiting a small star in our Galaxy called Trappist-1, revealed Wednesday, are the most recent — and arguably the most spectacular — in a string of exoplanet discoveries going back 20 years.