In this module, we first took pictures of the open star cluster, NGC 2070 using optical imaging. We did this by using Skynet and the La Serena telescope in Chile. We used the filters B, V, R, and I. We set the exposure duration to 30 seconds for the filter B, 20 seconds for the filter V, 10 seconds for the filter R, and 15 seconds for the filter I. Later, we received the images. Then, we processed the images using Afterglow.
We also took pictures of the globular star cluster, NGC 3201, using optical imaging. We did this by also using Skynet and the La Serena telescope in Chile. We used the filters gprime, rprime, and iprime. We set the exposure duration for each of these filters to 60 seconds. Later, we received the images. Then, we processed the images using Afterglow.
For both NGC 2070 and NGC 3201, we stacked and aligned the images. Then, we added color to the stacked image. We then used the photometry tool in Afterglow to measure the brightness of each star. Next, we used Clustermancer and uploaded our photometry data. Clustermancer then put all of the stars on a graph. Finally, we adjusted the age, metallicity, and reddening to make our data fit the isochrone model.