At roughly 8 billion years old, and with an iron to hydrogen abundance ratio that is more than twice that of the Sun, it is one of the oldest and most metal-rich clusters in the Milky Way.

Compounded with the fact that it has an unusually high population of stars, NGC 6791 is among the most studied clusters in the sky.

This spacecraft was a dedicated mission to discover extrasolar planets by the transit method from solar orbit.

In April 2009 the project released the first light images from the spacecraft and NGC 6791 was one of two objects highlighted.

[8] The planet hosting star Kepler-19, discovered from Kepler data, is located approximately 5 arcminutes northwest of NGC 6791.