>> The CDS Acronym for this catalogue is KW97 , yet as the Vizier link Brian >> gave shows, the online documentation uses HBH... The database _is_ made by mere humans, so errors are not unexpected. I suggest John Greaves write to Francois Ochsenbein in Strasbourg (francois@simbad.u-strasbg.fr) and point out the inconsistency. The nomenclature dictionary should match the catalogue. Whether HBH or KW97 is to be preferred is their decision. \Brian