If you click on the graph area, the day and apparent magnitude value for that location are displayed at the top.

• Press 0-9 to get data for RR Lyrae 0 - 9
• Press C to connect the dots.
• Press left arrow key to shift the curves to the left (shows more phases).
• Press right arrow key to shift the curves to the right (shows fewer phases).
• Press G to display a grid over the data points.