2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/8529We present a study of the stellar populations and gas physical conditions in Circumnuclear Star Forming Regions (CNSFRs) based on spectrophotometric data, including the 7000 angstroms to 1 micron spectral range, which is of great interest to the whole diagnostic of the ionized gas. The properties of CNSFRs as a class are inferred from a comparison with those of other star forming emission-line objects: low excitation disc HII regions and HII galaxies.6 pages, 4 eps figures. Proceeding for the conference "Starbursts: From 30 Doradus to Lyman Break Galaxies", held in Cambridge (UK) in September, 2004Astrophysicstext