Cluster ages can be determined from

Question

Quizplus · Accepted Answer

The most effective and accurate method for determining the age of a cluster is through main sequence turnoff analysis. This involves looking at the point on the main sequence where stars begin to leave the sequence and become giants, indicating that they have exhausted their primary fuel source. The position of this turnoff point can be used to derive an age for the cluster. The other methods listed (main sequence fitting, pulsating variable stars, spectroscopic and visual binaries) can be useful for other purposes such as determining distances or binary properties, but are not as reliable for age determination.

Cluster Ages Can Be Determined from