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The intermediate age open cluster NGC 2660 | | S. Sandrelli
; A. Bragaglia
; M. Tosi
; G. Marconi
; | | Date: |
5 Jul 1999 | | Subject: | astro-ph | | Affiliation: | Oss. Astron. Milano), A. Bragaglia and M. Tosi (Oss. Astron. Bologna), G. Marconi (Oss. Astron. Roma | | Abstract: | We present CCD UBVI photometry of the intermediate old open cluster NGC2660, covering from the red giants region to about seven magnitudes below the main sequence turn-off. Using the synthetic Colour - Magnitude Diagram method, we estimate in a self-consistent way values for distance modulus ((m-M)0 ~= 12.2), reddening (E(B-V) ~= 0.40), metallicity ([Fe/H] about solar), and age (age ~ 1 Gyr). A 30% population of binary stars turns out to be probably present. | | Source: | arXiv, astro-ph/9907048 | | Services: | Forum | Review | PDF | Favorites | |
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