... 85, No. 11, pp. 972­985. i The Stellar Population and Evolution of Galaxies of the NGC 80 Group O. K. Silchenko1 and V. L. Afanasiev 1 2 Sternberg Astronomical Institute, Universitetski i pr. ... The bulges of five of the seven galaxies appear to be old, with the average age of the bulge stars being 10­15 billion years. Signs of a relatively recent star-formation burst are observed in the small S0 galaxy IC 1548, whose average bulge age is 3 billion years and average core age is 1.5 billion years. ...