V, I photometry of the bulge metal-rich globular clusters NGC 6380 and Terzan 12^*

¹ Università di Padova, Dept. di Astronomia, Vicolo dell'Osservatorio 5, I-35122 Padova, Italy
² Universidade Federal do Rio Grande do Sul, Dept. de Astronomia, CP 15051, Porto Alegre 91500-970, Brazil
³ Universidade de São Paulo, CP 9638, São Paulo 01065-970, Brazil

Received: 19 March 1997
Accepted: 9 June 1997

Abstract

We present V, I photometry of the bulge globular clusters NGC 6380 and Terzan 12, using the ESO NTT telescope. For the first time colour-magnitude diagrams are obtained for these clusters, allowing us to derive reliable cluster parameters. From the colour-magnitude diagram morphology both clusters result to be metal-rich. For NGC 6380 we estimate , a reddening of and a distance . For Terzan 12 we obtain , and .