Blue compact dwarf galaxies Dwarf galaxy

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blue compact dwarf pgc 51017.


in astronomy, blue compact dwarf galaxy (bcd galaxy) small galaxy contains large clusters of young, hot, massive stars. these stars, brightest of blue, cause galaxy appear blue in colour. bcd galaxies classified dwarf irregular galaxies or dwarf lenticular galaxies. because composed of star clusters, bcd galaxies lack uniform shape. consume gas intensely, causes stars become violent when forming.


bcd galaxies cool in process of forming new stars. galaxies stars formed @ different time periods, galaxies have time cool , build matter form new stars. time passes, star formation changes shape of galaxies.


nearby examples include ngc 1705, ngc 2915, ngc 3353 , ugca 281.









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