Le Borgne, J. F.Mathez, GuyMellier, Y. (Yannick), 1958-Pelló i Descayre, RoserSanahuja i Parera, BlaiSoucail, G.2009-08-252009-08-2519910365-0138https://hdl.handle.net/2445/9187Spectroscopic and photometric observations in a 6 arcmin x 6 arcmin field centered on the rich cluster of galaxies Abell 2390 are presented. The photometry concerns 700 objects and the spectroscopy 72 objects. The redshift survey shows that the mean redshift of the cluster is 0.232. An original method for automatic determination of the spectral type of galaxies is presented.21 p.application/pdfeng(c) The European Southern Observatory, 1991ClústersGalàxiesFotometria astronòmicaClusters of galaxiesRedshifts of galaxiesinfo:eu-repo/semantics/article59689info:eu-repo/semantics/openAccess