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WASHINGTON CCD PHOTOMETRY OF THE OLD OPEN CLUSTER TOMBAUGH 2
WEE SUN-OK,LEE MYUNG GYOON,GEISLER DOUG The Korean Astronomical Society 1996 Journal of The Korean Astronomical Society Vol.29 No.suppl1
We have estimated a metal abundance of [Fe/H]= -0.48 $\pm$ 0.14 dex, a reddening of E(B- V)= 0.30 mag, an age of 2.0 $\pm$ 0.4 Gyr, and a distance of 7.9 $\pm$ 0.8 kpc for Tombaugh 2 using the Washington filter system.