The ellipse is, with the sun at one focus of each planetary orbit.
They don't because their different in size, shape, and color
Planetary orbits are eliptical. Each orbit forms an elipse.
Planets are all spherical.
all planets have a circular shape
There are two planets with an almost perfectly spherical shape. They are Mercury and Venus.
The planets do not circle the sun in any specific shape. Their orbits around the sun are more elliptical than circular, and each planet has its own unique elliptical orbit.
The inner planets have a spherical shape. In fact all planets are more or less spherical.
Spherical
ellipitcal
Planets follow an eclipse shape when orbiting around the sun. Pluto had an irregular orbit and is no refereed to as a moon.
They are a round shape.