The Hercules globular cluster, picture of June of the Observatori Asrtronòmic del Montsec
Each month the Observatori Astronòmic del Montsec (OAdM) of IEEC publishes an outstanding image from the observations made there. In June, the protagonist of the image of the month is the Hercules globular cluster.


This impressive globular cluster, also known as M13, is one of the brightest visible in the northern hemisphere sky. It is estimated to contain a few hundreds of thousands of stars, about 25,000 light-years away in the constellation Hercules,they are concentrated in a region only about 150 light-years across. Near the center, however, you can get to find more than 100 stars in just three light years.

The image was taken with the Joan Oró telescope, at the Observatori Astronòmic del Montsec, using different broadband filters and a total time of 2 hours of exposure.
Attached Documents
Generalitat de CatalunyaUniversitat de BarcelonaUniversitat Autònoma de BarcelonaUniversitat Politècnica de CatalunyaConsejo Superior de Investigaciones CientíficasCentres de Recerca de Catalunya