Using authentic data from NASA's Solar Heliospheric Observatory (SOHO), students explore sunspot images to make meaning of the terms "frequency" and "period" within the context of a natural phenomenon occurring on the sun. Learners will closely examine and interpret time-stamped images to identify patterns and determine whether these patterns conform to existing scientific theory. This Digi Kit was inspired by an article in The Physics Teacher journal, "Teaching Astronomy Using Tracker", by Belloni, Christian, and Brown. The Lecture Tutorial page is a modification of existing material developed by AAPT and Temple University. The accompanying multimedia links in this Digi Kit support best practices in teaching concepts related to solar phenomena, rotating frames of reference in space, and periodicity.