If the object isn't orbiting the Sun, then it isn't a planet.
The plane with the smallest orbit is Mercury, and the planet with the largest orbit is Neptune.
The orbit of a planet is commonly an ellipse.
A planet or moon orbits the Sun (or a planet) and then makes an orbit
pluto
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.
There would be no orbit. You have to have a body to orbit around and without a star or other planet to orbit around, it would just move in a straight line.
We all die
They will hit Earth if, in their orbit around the Sun, they happen to cross Earth's orbit.
The object would crash into the planet.
Comets don't orbit a planet, they orbit the sun.
The orbit would increase in size (the planet would orbit farther from the sun).
No, Venus does not orbit a planet. It orbits a star, which is our Sun. It can not orbit a planet , if it did it would be a moon
Planets orbit stars, not other planets. A planet-like object that orbits a planet is a moon.
The plane with the smallest orbit is Mercury, and the planet with the largest orbit is Neptune.
The object would crash into the planet.
Neptune.
The shape of a planet's orbit is elliptical.