Perihelion is defined as what?

Perihelion is defined as what?

• A. The farthest point from the Sun in its orbit
• B. The point in the orbit of a planet, asteroid, or comet at which it is closest to the sun
• C. The time a planet spends near the sun
• D. The angle of the orbit relative to the sun

Answer: (B)

Perihelion is the point in a body’s orbit around the Sun where it is closest to the Sun. In an elliptical orbit, the distance to the Sun changes as the body moves, with perihelion being the minimum distance and aphelion the maximum distance. The other options describe the farthest point, the time spent near the Sun, and the orbit’s inclination, none of which define perihelion. This concept also helps explain why a planet speeds up as it approaches closest to the Sun and slows down as it moves away.

Perihelion is the point in a body’s orbit around the Sun where it is closest to the Sun. In an elliptical orbit, the distance to the Sun changes as the body moves, with perihelion being the minimum distance and aphelion the maximum distance. The other options describe the farthest point, the time spent near the Sun, and the orbit’s inclination, none of which define perihelion. This concept also helps explain why a planet speeds up as it approaches closest to the Sun and slows down as it moves away.