The authors’ log offered protocol. They had triangulated the source—WD 269, a catalog entry that flickered like an entry in a phone book: coordinates, right ascension, declination, a small italicized note: “see Appendix C.” The appendix contained a scanned ledger from an amateur astronomy society dated decades earlier, listing a transient that no observatory had followed up. Margins there hinted at older names: outpost, beacon, hamlet. The words felt human.