We report the detection of a transiting planet around \pi Men ( HD 39091 ) , using data from the Transiting Exoplanet Survey Satellite ( TESS ) .
The solar-type host star is unusually bright ( V = 5.7 ) and was already known to host a Jovian planet on a highly eccentric , 5.7-year orbit .
The newly discovered planet has a size of 2.04 \pm 0.05 R _ { \oplus } and an orbital period of 6.27 days .
Radial-velocity data from the HARPS and AAT/UCLES archives also displays a 6.27-day periodicity , confirming the existence of the planet and leading to a mass determination of 4.82 \pm 0.85 M _ { \oplus } .
The star ’ s proximity and brightness will facilitate further investigations , such as atmospheric spectroscopy , asteroseismology , the Rossiter–McLaughlin effect , astrometry , and direct imaging .