Age Estimates of Open Clusters Using Gaia DR2

In a collaboration between students from three high schools, we present our preliminary results using Gaia DR2 data to refine age estimates of ten open clusters. We are following the basic approach presented by the Gaia collaboration (2018). We selected members based on proper motions. PARSEC isochrones (Bressen et al 2012) were matched to our color-magnitude diagrams to define the turn-off point for each cluster. In this preliminary study, we have not examined the effects of metallicity and/or reddening on our age calculations. This project is a collaborative effort of high school students and teachers from three states. They analyzed data individually and later collaborated online to compare results. This project is the result of many years of work with the NASA/IPAC Teacher Archive Research Program (NITARP).