Yes. The planets travel fastest at perihelion, the closest point to the sun in the orbit, and slowest at aphelion, the farthest point.
Circular orbits are unstable; any outside influence (i.e. other planets) will distort them. Elliptical orbits are self adjusting.
that it will be faster when closer to the sun than futher away
In one word 'YES'. The paths that you describe are the planets orbits. These orbits are shaped like 'Ellipsoids'., that is an ellipse that doesn't quite close-up , but overloops with every circuit. The Sun lies not at the centre of the ellipsoid, but at one of the foci. As a consequence planets following their orbits paths speed up (Nearest the Sun) and slow down (Furthest from the Sun).
yes, the earth and other planets revolve around the sun
Yes, all of the planets rotate around the sun, in the same direction but at different speeds and time periods. well planets rotate on their own axis, the correct term would be revolve. The planets revolve around the sun
Kepler
Elliptical
coperincus
Yes, every orbit is slightly elliptical ... see - nothings perfect!
Circular orbits are unstable; any outside influence (i.e. other planets) will distort them. Elliptical orbits are self adjusting.
galelio
He is a danish astronomer who stated that all the planets revolve around the sun in elliptical orbits and that the sun is not in the exact center of the orbit.
the planets, the word planet comes from the latin word wanderer
A planet has an elliptical shaped orbit. It orbits with a constant angular speed, but a varying linear speed.
It was Johannes Kepler 1571-1630 who produced the Laws of Planetary Motion in 1618.
that it will be faster when closer to the sun than futher away
some times because we revolve in an elliptical orbit which is like the shape of an oval