alleryBy Kepler's First Law, every planet orbits the Sun in:
AAn ellipse with the Sun at one focus
BA circle with the Sun at the centre
CA parabola with the Sun at the vertex
DA hyperbola with the Sun at one focus
Answer & Solution
Correct answer: A. An ellipse with the Sun at one focus
**Kepler's 1st Law:** planet orbits are ELLIPSES with the SUN AT ONE FOCUS (not centre).
The other focus is empty.
Most planetary orbits have low eccentricity (close to circular, but ELLIPSES, not circles).
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