article_title name
andrzej udalski
 andrzej udalski
andrzej udalski

andrzej udalski -lrb- born 22 january 1957 in Łódź , poland -rrb- is a polish astronomer and astrophysicist , and director of the astronomical observatory of the university of warsaw .
he is also head of the department of observational astrophysics at astronomical observatory , the head and project manager of the optical gravitational lensing experiment , and editor of the quarterly journal acta astronomica .
