Berkeley 87 is an open cluster in a heavily obscured region of the Milky Way in Cygnus. The rare WO type WolfâÂÂRayet star WR 142 is a member of Berkeley 87.
This cluster contains HD 229059 which, as of August 2021, is the nearest known star to Earth with a bolometric luminosity greater than 1 million <var>L</var><sub>âÂÂ</sub>.