The Physics Study Program of FMIPA Tanjungpura University recently held an educational activity to invite the public to understand the phenomenon of solar culmination in a series of activities called Pesona Kulminasi, organized by the West Kalimantan Disporapar. This activity was held on 21 September 2024, at the Equator Monument in Pontianak City. Culmination occurs when the sun is at its highest position in the sky. At that time, the sun will be directly above the observer's head or at the zenith point. As a result, the object's shadow will appear to disappear because it is stacked with the object itself. This event is known as "Day Without Shadows." This event aims to provide a direct experience to the general public, including students, by observing celestial phenomena and deepening their insight into astronomy. Participants were invited to participate in several exciting demonstrations in this activity. The activity began with a culmination simulator demo, where participants could see interactive illustrations of how this phenomenon occurs. This simulator shows the change in the sun's position as the Earth moves in its orbit, providing an in-depth understanding of the scientific reasons behind the culmination event. In addition, participants also had the opportunity to directly observe the sun using a special telescope equipped with a protective filter. With this tool, the public can observe the details of the sun, including sunspots, safely and more clearly, giving them a similar experience to that experienced by astronomers in sky research.

To enrich understanding, the event also featured a demonstration of the position of the Earth and the sun for an entire year, showing how the changes in position affect phenomena such as the changing of the seasons and culmination. Through this visual aid, participants can see directly the relationship between the position of celestial bodies and phenomena that occur on Earth, making astronomy easier to understand and more relevant to everyday life.

With this activity, the Physics Study Program, FMIPA, Tanjungpura University, hopes to increase public interest in astronomy and foster a deeper appreciation of natural phenomena. As a unique and magical moment, the culmination phenomenon has allowed the public to experience science directly while deepening their curiosity about the vast and mysterious universe.