ORBITAL ECCENTRICITY STUDY OF PLANETS: A COMPARATIVE ANALYSIS OF MANUAL SIMULATION AND DIGITAL VISUALIZATION. - FIRDAUS, Thoriqi; Listiawan; DEWANTO, Riski; WINEDAR, Ihza Risky (Journal of Theory & Practice in Education (JTPE) / Eğitimde Kuram ve Uygulama, 2025)