Velocity is a indication of speed and direction, so the fact they travel around it means that the direction is continually changing and, therefore velocity is continually changing. Kepler was the astronomer who discovered the laws of motion for the planets. Newton, a century later, derived the laws from his laws of gravity and motion. The first law of planetary motion states that planets orbit the sun in an elipse. So the speed is continually changing.
no they move at different speeds because they are each spinning differently and affected by gravity differently. The planets closest to the sun move faster. Below is the list of specific speeds:
km/h
Mercury 172,404
Venus 126,108
Earth 107,244
Mars 86,868
Jupiter 47,016
Saturn 34,705
Uranus 24,516
Neptune 19,548
Pluto 17,064
No, every planet moves at a different speed around the sun. The speed at which a planet orbits the sun is related to the distance of that planet from the sun; closer planets orbit faster. Mercury is the closest and the fastest.
No, the planets of our solar system do not orbit the sun as the same speed - neither tangental speed nor angular rate.
Indeed, as the planets have elliptical orbits their tangental speed varies considerably over the period of a single orbit but this range of speeds remains largely constant year on year.
I do not think they do because some planets are smaller than others which may or may not effect the speed of the orbit. The mass may be the same for all planets but because of different minerals, rocks, and gasses on planets, they probably orbit at different speeds.
no, the planet travels faster when it is closer to the sun and slower when it is farther away
No. Their orbital velocities are all different and indeed the speed of the movement for any one planet changes with time because the orbits are elliptical.
yes
The planet Uranus.
No, actually it takes 365.26 days to orbit around the sun. This is one year.
I am not familiar with planets evolving around any singular planet. If you are referring to orbit, the planets orbit the sun, a star, not a planet, in our solar system. Some planets have moons in their orbit.
A planet in an elliptical (oval) orbit will move faster as it gets to its closest point to its sun, and slow down as it reaches its furthest point. A planet with a truly circular orbit will have a constant speed.
When you travel around the Sun or a planet, due to gravitational attraction, it is called an "orbit". It is also a "revolution" around the Sun or planet.
yes
A planet in an orbit greater than any of the others.An object in orbit around a single planet is a moon or satellite of that planet.
An orbit is the path a planet takes around the sun. Earth's orbit is an ellipse. It takes the Earth one year to travel along the elliptical path around the sun.
Yes. The closer an object is to the Sun, the shorter the distance it has to travel to get around it.
none the orbit is around the sun
Yes, when Cassini entered orbit around Saturn it did cause the planet's orbit to change.
U answer
The earth is moving fastest in its orbit at the moment of perihelion, when it is closest to the sun. the happens around January 3.
The planet Uranus.
No, a moon is a natuaral satellite and would always be in orbit around a planet. If it did'nt orbit the planet it would fall into the planet.
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.