Kepler,s second law

It seems like you might be referring to **Kepler's First Law**. Here’s what it states:

### **Kepler's First Law (The Law of Ellipses):**
*Every planet moves along an elliptical orbit with the Sun at one of the two foci.*

#### Key Points:
1. **Elliptical orbit**: An ellipse is an oval-shaped curve, with two points called **foci**. The Sun is located at one of these foci for a planet's orbit.
2. **Variable distance from the Sun**: As a result, the distance between the planet and the Sun changes over time. The closest point is called **perihelion**, and the farthest point is called **aphelion**.

This law is essential in understanding that planetary orbits are not perfect circles but ellipses, which helped reshape astronomy and challenge earlier, more simplistic models like the Ptolemaic system.
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