Planetary motion records: 2/5 of 180 = (2 × 180) ÷ 5 = 360 ÷ 5 = <<360/5=72>>72.

Tue, 05 May 2026 08:41:30 +0000

Planetary Motion Records: Unlocking the Cosmic Rhythm of Our Solar System Understanding how planets move across the night sky has fascinated scientists and stargazers for centuries. One fascinating mathematical insight into planetary motion involves calculating key orbital cycles—how the vast dance of celestial bodies aligns mathematically over time. A compelling example lies in how planetary motion records reveal that 2/5 of 180 equals 72—a simple yet profound number in astronomy. This calculation, expressed as (2 × 180) ÷ 5 = 360 ÷ 5 = 72, highlights a fundamental rhythm: the orbital period of approximately 72 Earth days, which closely matches Mars’平均 sidereal orbital period, about 68.6 days, showing how surprisingly precise these celestial cycles can be. ### What Are Planetary Motion Records?