Bill Gray (1965– ) has made several contributions to astrometry, in particular with his Guide series of starcharting software, his Charon astrometry program and his reduction of the GSC 1.1 star catalog to the ACT frame (GSC-ACT). (M 41389) _ _.
Avastatud: 19-2-1998 Avastamiskoht: Oaxaca Avastajad: Roe, J. M.