Eccentricity of the Planets Since Pluto became a dwarf planet, Mercury is the planet with the highest eccentricity, meaning it has the most elliptical orbit. The planets in the solar system all have relatively low eccentricities. However, many exoplanets have been observed to have higher eccentricities.
Which has highly elliptical orbit?
Comets go around the Sun in a highly elliptical orbit.
What planet has the most eccentric or the most elliptical orbit?
Mercury has a more eccentric orbit than any other planet, taking it to 0.467 AU from the Sun at aphelion but only 0.307 AU at perihelion (where AU, astronomical unit, is the average Earth–Sun distance).
What is the highest point in elliptical orbit?
The extreme points on the major axis of the orbit are called the apse points. The point closest to the attracting body is called periapsis, while the farthest point is called apoapsis. For orbits about the earth, these extreme points are called “perigee” and “apogee,” respectively.
Which two planets have the most elliptical orbit?
A perfectly circular orbit has an eccentricity of zero; higher numbers indicate more elliptical orbits. Neptune, Venus, and Earth are the planets in our solar system with the least eccentric orbits. Mercury and the dwarf planet Pluto have the most eccentric orbits.
Which planet's orbit is least elliptical?
Venus Venus has the lowest eccentricity, meaning its orbit is nearly circular. Since Pluto became a dwarf planet, Mercury is the planet with the highest eccentricity, meaning it has the most elliptical orbit.