Abstract
We present V and I photometry of a 9.4 × 9.4 arcmin 2 field centred on the dwarf spheroidal galaxy Leo I. The I magnitude of the tip of the red giant branch (RGB) is robustly estimated from two different data sets (I TRGB = 17.97 +0.05 −0.03 ). From this estimate, adopting [M/H] �− 1.2 from the comparison of RGB stars with Galactic templates, we obtain a distance modulus (m − M)0 = 22.02 ± 0.13, corresponding to a distance D = 254 +16 −19 kpc. Ke yw ords: stars: Population II ‐ galaxies: distances and redshifts ‐ Local Group.
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