Kepler’s law of orbit was a deviation from the

Options

A. Copernican Model
B. Galileo's Model
C. Ptolemy's Model
D. Aryabhatta's Model

Answer

To solve the question regarding Kepler's law of orbit and its deviation from previous models, we can break it down into the following steps:

### Step 1: Understand Kepler's Laws
Kepler's laws of planetary motion describe how planets orbit the Sun. The first law states that planets move in elliptical orbits with the Sun at one focus of the ellipse.

### Step 2: Identify the Previous Models
Before Kepler, there were several models of planetary motion:
- **Ptolemaic Model**: An Earth-centered (geocentric) model where planets move in circular orbits with epicycles.
- **Copernican Model**: A Sun-centered (heliocentric) model proposed by Nicolaus Copernicus, which suggested that planets move in circular orbits around the Sun.
- **Galileo's Contributions**: Galileo supported the Copernican model but did not propose a new model of planetary motion.
- **Aristotelian Model**: An ancient geocentric model that also suggested circular orbits.

### Step 3: Compare Kepler's Laws with the Copernican Model
Kepler's first law, which states that orbits are elliptical, deviates from the Copernican model that proposed circular orbits. This was a significant shift in understanding planetary motion.

### Step 4: Conclusion
Based on the analysis, we can conclude that Kepler's law of orbit was a deviation from the Copernican model.

### Final Answer
Kepler’s law of orbit was a deviation from the **Copernican model**.

---