Two Exoplanets Discovered Orbiting TOI-1453

Astronomers have discovered two exoplanets, a super-Earth and a sub-Neptune, orbiting the star TOI-1453, approximately 250 light-years away. The planets, named TOI-1453 b and TOI-1453 c, were identified using data from NASA's Transiting Exoplanet Survey Satellite (TESS) and the HARPS-N spectrograph. TOI-1453 b, a super-Earth, completes its orbit in just 4.3 days. TOI-1453 c, a sub-Neptune, has an unusually low density, suggesting a hydrogen-rich atmosphere or a predominantly watery composition. The planets orbit in a near 3:2 resonance, offering insights into planetary migration. Future observations using the James Webb Space Telescope (JWST) could analyze TOI-1453 c's atmosphere.