@[osf](v8d3n)
This figure shows the known inner/outer habitable zone (IOHZ) exoplanets, as of May 2020. It includes only planets smaller than 1.8x Earth's radius or with m sin i below 8x Earth's mass, which could potentially be rocky (based on LHS 1140b as a confirmed 1.7 Earth radius, 7 Earth mass rocky HZ planet; [Ment et al., 2019][1]). Habitable zone flux limits are based on 1D climate models from [Kopparapu et al. (2013)][2]. Exoplanet data for this figure were extracted from the [NASA Exoplanet Archive][3].
[1]: https://ui.adsabs.harvard.edu/abs/2019AJ....157...32M/abstract
[2]: https://ui.adsabs.harvard.edu/abs/2013ApJ...765..131K/abstract
[3]: https://exoplanetarchive.ipac.caltech.edu