Table 3: Our distance and age estimates together with selected values from the literature.
Cluster Method Distance Age
    kpc Myr
NGC 3293      
Freyhammer et al. (2005) Eclipsing Binary 2.8 $\pm$ 0.3 10-13
Baume et al. (2003) $\it UBVRI$ MS fitting 2.8 $\pm$ 0.3 6.5-10
Shobbrook (1983) $\it uvby\beta$ sequence fitting 2.5 $\pm$ 0.1 -
This paper (33 stars) Spectroscopic parallax 2.9 $\pm$ 0.1 10-20
Mean of all results   2.8 $\pm$ 0.2 10
Mean and SD of $A_{\rm V}$   0.80 $\pm$ 0.29  
NGC 4755      
Sanner et al. (1995) $\it UBVRI$ MS fitting 2.1 $\pm$ 0.2 8-12
Balona & Koen (1994) $\it uvby\beta$ MS fitting 2.0 $\pm$ 0.2 -
Sagar & Cannon (1995) $\it UBVRI$ MS fitting 2.1 $\pm$ 0.2 10
This paper (39 stars) Spectroscopic parallax 2.3 $\pm$ 0.1 10-15
Mean of all results   2.1 $\pm$ 0.2 10
Mean and SD of $A_{\rm V}$   1.15 $\pm$ 0.15  
NGC 6611      
Hillenbrand et al. (1993) Spectroscopic parallax 2.0 $\pm$ 0.2 1-3
Belikov et al. (1999) $\it UBV$ MS fitting 2.1 $\pm$ 0.2 -
This paper (24 stars) Spectroscopic parallax 1.8 $\pm$ 0.1 2-4
Mean of all results   2.0 $\pm$ 0.2 2
Mean and SD of $A_{\rm V}$   2.81 $\pm$ 0.88  


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