UBVI photometry of the intermediate age open cluster NGC 6939

2); 4) (1-INAF Oss.Astr.Roma; 2-Telescopio Nazionale Galileo; 3-INAF Oss.Astr.Bologna; 4-ESO); Angela Bragaglia (3); Gianni Marconi (1; Gloria Andreuzzi (1; Monica Tosi (3)

arxiv: astro-ph/0311249 · v2 · submitted 2003-11-11 · 🌌 astro-ph

UBVI photometry of the intermediate age open cluster NGC 6939

Gloria Andreuzzi (1 , 2) , Angela Bragaglia (3) , Monica Tosi (3) , Gianni Marconi (1 , 4) (1-INAF Oss.Astr.Roma; 2-Telescopio Nazionale Galileo; 3-INAF Oss.Astr.Bologna; 4-ESO) This is my paper

classification 🌌 astro-ph

keywords clusterintermediateopenphotometryubvicolourconsidereddepending

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We present CCD UBVI photometry of the nearby, intermediate age open cluster NGC 6939. Using the synthetic Colour - Magnitude Diagrams technique we estimate the following parameters: age between 1.3 and 1.0 Gyr (depending on whether or not overshooting is considered), reddening 0.34<E(B-V)<0.38 and distance modulus 11.3<mod_0<11.4 .

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UBVI photometry of the intermediate age open cluster NGC 6939

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