All orbits are geodesic curves. Comets tend to have elliptical orbits ... as do planets, really; the degree of eccentricity (this is a measure of how "stretched" the ellipse is) just tends to be higher for comets.
Comet orbits are typically elliptical, meaning they are elongated and not circular like planet orbits. This can result in comets having highly eccentric paths around the Sun.
Planetry orbits are elliptical. Most planet's orbits are nearly circular apart from Mercury and Pluto.
The Earth orbits in the plane of the ecliptic in an ellipsoidal orbit that is nearly circular. Comets orbits are highly elliptical and mostly out of the plane of the ecliptic.
Virtually NOTHING in space is in a circular orbit; every body out there is in an elliptical orbit. Some are CLOSE to circular, but I don't believe than any are quite exact. Comets especially are in VERY elliptical orbits. If their orbits were even nearly circular, their ices and volatile gasses would have been evaporated long ago.
No. The planets in the Solar System all have almost circular orbits, but the orbits of comets are highly eccentric (oval-shaped). This means that while the distance a planet is from the Sun is rather constant, the path of a comet means it comes close to the Sun, and then moves far away.
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.
Comets typically have elliptical orbits, which means their paths around the Sun are elongated and not perfectly circular. This is due to the gravitational influence of other celestial bodies, causing their orbits to be more elongated.
The comets in our Solar System orbit our Sun. Presumably, a comet could be trapped by a planet, so that it orbits that planet; and presumably, there are also comets around other stars.
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.
False. The shape of the orbit of each planet is an ellipse, not a perfect circle. This is described by Kepler's First Law of Planetary Motion, which states that planets move in elliptical orbits with the Sun at one of the foci. While some orbits may appear nearly circular, they are not perfectly circular.
A planet would typically have a low eccentricity, ranging from almost circular (0) to slightly elliptical (0.1). Comets, on the other hand, have highly eccentric orbits, often exceeding 0.5 and can approach 1, resulting in elongated and highly non-circular paths around the Sun.
No. A planet-like object that orbits a planet is a moon. A dwarf planet orbits a star just like a true planet does, but has been unable to clear its orbital path of debris such as asteroids and comets.