The three stars are in different locations throughout the Milky Way's halo and are estimated to be about 30,000 light years from Earth. (For reference, the disk of the Milky Way spans 100,000 ...

NGC 7793 is about 30,000 light years in diameter ... More information: Lin He et al, Probing the Hot Gaseous Halo of the Low-mass Disk Galaxy NGC 7793 with eROSITA and Chandra, arXiv (2025). DOI: ...