The Digital Press

This study uses Gaia DR3 data to analyze three open star clusters—SAI 16, SAI 81, and SAI 86—measuring their ages, distances, masses, and dynamic states. The research confirms these clusters are dynamically relaxed and belong to the young stellar disc of our Galaxy.

Why it matters: Understanding cluster properties helps reveal the structure and evolution of the Milky Way's young stellar population.

The big picture: Detailed dynamics and positions situate these clusters within the Galactic disc, informing models of Galactic formation and motion.

Stunning stat: SAI 81 has the highest total mass of about 302 solar masses among the three clusters studied.

Quick takeaway: All three clusters are dynamically relaxed and share space velocity characteristics consistent with the young stellar disc.