This work used the Spitzer Space Telescope and the Very Large Telescope at Paranal, among others, and brought the total number of planets to seven, of which three are considered to be within its habitable zone.
Selain TRAPPIST, pekerjaan ini memanfaatkan antara lain Very Large Telescope di Paranal dan Teleskop luar angkasa Spitzer NASA, dan menemukan total jumlah planet menjadi tujuh, di mana tiga di antaranya dianggap berada dalam zona layak huni.