Star Cluster NGC 3766

This spectacular group of young stars is the open star cluster NGC 3766 in the constellation of Centaurus (The Centaur). Very careful observations of these stars by a group from the Geneva Observatory using the Swiss 1.2-metre Leonhard Euler Telescope at ESO’s 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.

Image Credit: ESO
Explanation from: https://www.eso.org/public/images/eso1326a/