The stellar content and distance of UGC 4483

We present HST/WFPC2 observations of UGC 4483, an irregular galaxy in the M81/NGC 2403 complex, Stellar photometry was carried out with HSTphot, and is complete to V similar or equal to 26.0 and I similar or equal to 24.7, We measure the red giant branch tip at I = 23.56 +/- 0.10, and calculate a distance modulus of mu (0) = 27.53 +/- 0.12 (corresponding to a distance of 3.2 +/- 0.2 Mpc), placing UGC 4483 within the NGC 2403 subgroup, We were able to measure properties of a previously known young star cluster in UGC 4483, finding integrated magnitudes of V = 18.66 +/- 0.21 and I = 18.54 +/- 0.10 for the stellar contribution (integrated light minus Her and [O III] contribution), corresponding to an age of similar to 10-15 Myr and an initial mass of similar to 10(4) M(circle dot). This is consistent with the properties of the cluster's brightest stars, which were resolved in the data for the first time. Finally, a numerical analysis of the galaxy's stellar content yields a roughly constant star formation rate of 1.3 x 10(-3) M(circle dot) yr(-1) and mean metallicity of [Fe/H] = -1.3 dex from 15 Gyr ago to the present.