NGC 6791 Cluster Recorded by Ground Telescope
With orbital analysis, scientists managed to extract new information about the origin and evolutionary path of the ancient and metal-rich open cluster NGC 6791. It is located at a distance of 13,300 light years and occupies a place in the Lyra territory. Its age reaches 8 billion years, and the ratio of iron to hydrogen is twice the sun. With a mass of 5,000 solar, this is also one of the most massive open clusters.
The latter study focused on possible places where a cluster could form. It helps to create a more accurate galactic model. An orbital study looked at the integration of half a million orbits to find those that converge in motion, position, and radial velocity. As a result, NGC 6791 could appear on the internal thin disk or in the bulge of the Milky Way. Due to radial migration, it would have shifted 26,200 light years from the center. This scenario also explains the large amount of metal.
Initially, the cluster should have been 10 times more massive than the current state.
