As the planet approaches perihelion (point of nearest approach to the Sun), its orbital velocity gets faster, and it is fastest at perihelion. Similarly, at aphelion (point of furthest approach to the Sun), the orbital velocity is slowest.
I don't know what "elliptical planet" is supposed to mean, but by any reasonable definition I can think of, no, all planets are "elliptical planets".
All planets have elliptical orbits.
Elliptical
No the planet's orbits are not VERY elliptical but yes, they are somewhat elliptical. They are not just rotating in a circle. More like an oval.
Johannes Kepler discovered that planet orbits were elliptical and not circular.
the answer is: the elliptical orbit of the planet
All of them do.
Ellipse is actually correct
Planets have elliptical orbits around the sun.
orbit
elliptical
I don't know what "elliptical planet" is supposed to mean, but by any reasonable definition I can think of, no, all planets are "elliptical planets".
All planets have elliptical orbits.
The minor planet Pluto has an elliptical orbit around the sun.
These are known as elliptical orbits. The shape they produce is an ellipsis.
elliptical
Elliptical