A nearby transiting rocky exoplanet that is suitable for atmospheric investigation

Spectroscopy of transiting exoplanets can be used to investigate their atmospheric properties and habitability. Combining radial velocity (RV) transit data provides additional information on exoplanet physical properties. We detect a rocky planet with an orbital period 1.467 days around the nearby red dwarf star Gliese 486. The 486 b is 2.81 Earth masses 1.31 radii, uncertainties 5%, as determined from RV photometric light curves. host at distance ~8.1 parsecs, has J-band magnitude ~7.2, observable both hemispheres Earth. On basis these planet's short high equilibrium temperature, we show that this terrestrial suitable for emission spectroscopy.