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We present resolved-star VI photometry of the Local Group dwarf irregulargalaxy IC1613 reaching I~23.5, obtained with the wide-field camera at the 2.5mIsaac Newton Telescope. A fit to the stellar density distribution shows anexponential profile of scale length 2.9' +/- 0.1 and gives a central surfacebrightness mu_V,0 = 22.7 +/- 0.6. The significant number of red giant branch(RGB) stars present in the outer part of our images (r > 16.5') indicates thatthe galaxy is actually more extended than previously estimated. A comparison ofthe color-magnitude diagrams (CMDs) as a function of galactocentric distanceshows a clear gradient in the age of its population, the scale lengthincreasing with age, while we find no evidence of a metallicity gradient fromthe width of the RGB. We present quantitative results of the recent starformation history from a synthetic CMD analysis using IAC-STAR. We find a meanstar formation rate of (1.6 +/- 0.8) x 10^{-3} Mo/yr/kpc^2 in the central r <2.5' for the last 300 Myr.

Stellar Content and Recent Star Formation History of the Local Group Dwarf Irregular Galaxy IC1613