THE ASTRONOMER Electronic Circular No 287 1989 Apr 18 19.07UT. Telecom Gold 72:MAG60138 JANET:GMH at UK.AC.RO.GREENWICH-STARLINK Ed:Guy M Hurst, 16, Westminster Close, Kempshott Rise, Basingstoke, Hants, RG22 4PP, England. Telephone:(0256)471074.Int:+44256471074 Telex:265871(MONREF G) Quote"72:MAG60138 ATT G.HURST"in FIRST line. ------------------------------------------------------------------- (2060) CHIRON K.J.Meech, University of Hawaii and M.J.S.Belton, Kitt Peak National Observatory, report that (2060) Chiron has a COMA. Observations made using a CCD at the prime focus of the KPNO 4-m telescope on Apr.10UT in nearly photometric conditions showed the feature, which was of very low surface brightness, extending mostly to the southeast for about 5". The seeing was such that the FWHM image of Chiron had a diameter of 0.9" and the very approximate Mould r mag was 16.4. The coma had the same general appearance on Apr.11 in slightly poorer seeing. IAUC 4770 Editor: We regret this delayed note due to a system fault on STARLINK which affected transmission of this message. Guy M Hurst