Hobbyist stakeout solves star mystery

摘要

HUMBLE backyard stargazers have staged a cosmic stakeout, besting a measurement made by NASA's famous Hubble telescope.rnThe measurement is the distance to SS Cygni, a star system consisting of a white dwarf plus a companion. The strong gravity from the dwarf strips material from the companion, forming a whirling, flattened accretion disc.