sentences:  However, this planet is not known to transit its host star.The limit between rocky planets and planets with a thick gaseous envelope is calculated with theoretical models.Calculating the effect of the active XUV saturation phase of G-type stars over the loss of the primitive nebula-captured hydrogen envelopes in extrasolar planets, it's obtained that planets with a core mass of more than 1.5 Earth-mass (1.15 Earth-radius max.