This colorful view of the globular star cluster NGC 6362 was captured by the Wide Field Imager attached to the MPG/ESO 2.2-m telescope at ESO’s La Silla Observatory in Chile. Credit: ESO
Globular clusters have for a long time been considered as formed of stars with similar initial chemical composition, but recently, increasing evidence has emerged regarding their more complex nature. NGC 6362 lies 25,000 light years away in the constellation Ara. It is ~13.5 billion years old and at a mass of ~50,000 solar masses, it is the least massive globular cluster with multiple detected photometric stellar populations that have different chemical abundances.
To determine the chemical composition of NGC 6362, the team used the Fibre Large Array Multi Element Spectrograph (FLAMES) mounted on one of ...
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