Pena, JH; Sareyan, JP; Cervantes-Sodi, B; Pena, R; Alvarez, M; Cano, M; Sorcia, MA
(2007)
While performing uvby-beta photoelectric photometry of some RR Lyrae stars in Bootes, acquired in 2005 at the Observatorio Astronomico Nacional, Mexico, we also observed several standard stars, HD115520 among them. After ...