García-Benito, Rubén; Pérez, Enrique; Díaz, Ángeles I.; Maíz Apellániz, Jesús; Cerviño, Miguel
Astrophysics and Space Science, Volume 324, Issue 2-4, pp. 337-340
We present a study of the star formation in the giant Hii region NGC5471 in the outskirts of M101. We have performed integrated photometry of the mean emission knots. Stellar population analysis with the code chorizos is compatible with the hypothesis that these regions have at least two different populations. The color-magnitude diagram of the region as derived from Hubble Space Telescope/WPFC2 stellar photometry shows that star formation has been going on for the last 70 Myr.