HD 191939: Three Sub-Neptunes Transiting a Sun-like Star Only 54 pc Away

Mariona Badenas-Agusti, Maximilian N. Günther, Tansu Daylan +38

We present the discovery of three sub-Neptune-sized planets transiting the nearby and bright Sun-like star HD 191939 (TIC 269701147, TOI 1339), a $K_s=7.18$ magnitude G8 V dwarf…