Across
- 1. — Shape of planetary orbits (oval)
- 6. — Point in orbit closest to the Sun
- 8. — Imaginary line joining planet and Sun
- 9. — Farthest point of a planet from the Sun
- 10. Law — Kepler’s law of equal areas in equal times
Down
- 2. Not a perfect circle, but slightly stretched path of a planet
- 3. — Central body around which planets revolve
- 4. — Time taken for one complete revolution
- 5. — Scientist who proposed three laws of planetary motion
- 7. Force that keeps planets in orbit (discovered by Isaac Newton)