An eliptical orbit. In theory a planet could also have a circular orbit, but no planet that we know of has a perfectly circular orbit, although some have a nearly circular orbit.
No planet has a perfectly circular orbit, though Venus has the least orbital eccentricity of any planet in our solar system.
Venus has the most nearly circular orbit of all the planets in our solar system. Its orbit has the least eccentricity, meaning it is closest to being a perfect circle.
Probably Venus, who's orbit varies only imperceptibly from a perfect circle. Venus's orbit is elliptical, but not so the average layman would notice (to astronomers, of course, it is quite different).
Not all celestial bodies move in circular orbits around larger objects. Planets can also orbit around stars or even on their own. So, it is not a requirement for a planet in a circular orbit to be moving around something bigger.
An eliptical orbit. In theory a planet could also have a circular orbit, but no planet that we know of has a perfectly circular orbit, although some have a nearly circular orbit.
No planet has a perfectly circular orbit, though Venus has the least orbital eccentricity of any planet in our solar system.
Venus has the most nearly circular orbit of all the planets in our solar system. Its orbit has the least eccentricity, meaning it is closest to being a perfect circle.
Gravity and velocity.
The 3 attributes of a planet: 1. is in orbit around the Sun 2. is nearly round 3. has cleared its orbit
All planets in our solar system, including the the Earth have an elliptical orbit around our Sun. In Earth's case, the orbit is nearly circular.
Probably Venus, who's orbit varies only imperceptibly from a perfect circle. Venus's orbit is elliptical, but not so the average layman would notice (to astronomers, of course, it is quite different).
Not all celestial bodies move in circular orbits around larger objects. Planets can also orbit around stars or even on their own. So, it is not a requirement for a planet in a circular orbit to be moving around something bigger.
As with all the planets, the orbit of Neptune is a nearly circular ellipse.
Mercury.
Planets around the sun in nearly circular orbit . The radii of these orbits differ widely
an orbit is the circular movement of a planet going round the sun, or a moon going round a planet. Gravitaional force is what creates the orbit.