This spectacular group of young stars is the open star cluster NGC 3766 in the constellation of Centaurus the Centaur. Careful observations of these stars by a group from the Geneva Observatory using the Swiss 1.2-meter Leonhard Euler Telescope at ESOтАЩs La Silla Observatory in Chile have shown that 36 of the stars are of a new and unknown class of variable star. This image was taken with the MPG/ESO 2.2-metre telescope at the La Silla Observatory. // ESO