Table 5: Comparison with previous distance determinations using the Main Sequence Fitting method based on Hipparcos parallaxes for the local subdwarfs. Errors quoted are those given in the original papers; they have different meanings from the present error bar.
Author [Fe/H] E(B-V) (m-M)V
NGC 6397
Reid (1998) -1.82 0.19 $12.83\pm 0.15$
This paper -2.03 0.183 $12.58\pm 0.08$
NGC 6752
Reid (1998) -1.42 0.04 $13.28\pm 0.15$
Carretta et al. (2000) -1.43 0.035 $13.32\pm 0.04$
This paper -1.43 0.040 $13.24\pm 0.08$
47 Tuc
Reid (1998) -0.70 0.04 $13.68\pm 0.15$
Carretta et al. (2000) -0.67 0.055 $13.57\pm 0.09$
Percival et al. (2002) -0.7 0.04 $13.37\pm 0.11$
Grundahl et al. (2002) -0.67 0.04 $13.33\pm 0.10$
This paper -0.66 0.024 $13.50\pm 0.08$


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