ESO 280-SC06 [SEP] constellation
ESO 280-SC06
ESO 280-SC06 (also known as ESO 280-6) is a globular cluster 69,800 light years from the Sun in the constellation of Ara. The cluster received this designation when it was catalogued by the European Southern Observatory (ESO) in Chile. Imagery and Hertzsprung-Russell diagrams show a sparsely populated globular cluster with a compact core.
referred to as "metal-rich" (for example, Terzan 7), while type II are "metal-poor" (for example, ESO 280-SC06).
These two populations have been observed in many galaxies, especially massive elliptical galaxies. Both groups are nearly as old as the universe itself and are of similar ages, but differ in their metal abundances. Many scenarios have been suggested to explain these subpopulations, including violent gas-rich galaxy mergers, the accretion of dwarf galaxies, and multiple phases of