Ascot

Color-Magnitude Diagram

In this demo, we create a color-magnitude diagram of open cluster Messier 67.

To begin, enter the object name "M67" into the Name Resolve gadget and click "Go". Move to the Data Query gadget and enter a name for this dataset, such as "stars". Click the "SDSS Stars" button to generate a query to the SDSS database for the stars in the current viewport. Click "Submit" to get the SDSS records. Move to the Plot gadget and select the dataset "stars" and plot "g-r" on the X axis, and "modelMag_g" on the Y axis. Then click "Plot" to create the color-magnitude diagram. Select points on the plot in different colors and ctrl-click points to move the viewport.