87K views · 991 reactions | Explore the intriguing 50-year periodic motion of Sirius A and Sirius B as they orbit a common barycenter. Every half-century, these celestial bodies form a unique alignment, paralleling phenomena in our own solar system. Additionally, Sirius moves one arcsecond per year against the stellar backdrop, raising fascinating questions about its motion and significance. | The Randall Carlson | Facebook