maybe
yes yes Yes, comets and asteroids usually follow elliptical orbit.
Asteroids are safer in a circular orbit than an elliptical orbit because being in an elliptical orbit causes them to tumble in an erratic manner. Larger asteroids are sometimes referred to as planetoids.
Apollo asteroids are a group of near-Earth asteroids with orbits that intersect with Earth's orbit. They are named after the first asteroid of this group discovered, 1862 Apollo. Some Apollo asteroids are classified as potentially hazardous asteroids due to their close approach to Earth.
Comets : mostly ice & are often in very distant elliptical orbits. Meteoroids and asteroids are usually rocky and/or metallic, asteroids are found in the asteroid belt (between Mars & Jupiter).
Asteroids generally have more eccentric and inclined orbits compared to planets, which typically have more circular and aligned orbits. Asteroids can intersect the orbits of planets and have a wider range of distances from the sun. Planets, on the other hand, tend to orbit in a more stable and predictable manner.
Comets are balls of ice and dust in orbit around the Sun. The orbits of comets are different from those of planets - they are elliptical. A comet's orbit takes it very close to the Sun and then far away again.
No, comets do.
They are still called asteroids. But some refer to them as "rogue" asteroids, or "asteroids in irregular orbits".
elliptical
As an elliptical orbit is any orbit that isn't perfectly circular, everything has an elliptical orbit. The planets Mercury and Pluto have the most elliptical orbits of the planets, and are easily seen to be oval shaped. Comets also have highly elliptical orbits.
Elliptical orbits of the planets around the sun actually match what we observe. Newton's Theory of Universal Gravitation states that planets will move around the sun in elliptical orbits.
Objects in our solar system, including planets, asteroids, and comets, travel around the Sun in elliptical orbits. The planets orbit the Sun in nearly circular paths along a plane known as the ecliptic. Comets and asteroids can have more eccentric and tilted orbits compared to the planets.