Distribution of incoming stellar flux and stellar efficient temperature for known planets and planets detected in this work. The conservative HZ is defined by the runaway greenhouse and maximum greenhouse limit (Kopparapu et al. 2014). The optimistic HZ is defined by the recent Venus and early Mars limit. The effective temperature and luminosity of GJ 229A c and GJ 180 d are from Schweitzer et al. (2019). The parameters for exoplanets are from the NASA Exoplanet Archive. The error bars for GJ 229A c and GJ 180 d are the uncertainties of effective temperature and effective stellar flux, due to measurement errors in stellar mass and luminosity.