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What is the study of the motion of planet Earth and the other planets called?
Celestial Mechanics. Or Astronomy
What is retrograde motion as applied to a planet?
The "apparent" reverse or backwards motion of a planet as observed from Earth. The innermost planets appear to have a retrograde motion when viewed from Earth.
When the earth ocassionally reverses direction is called what motion?
The earth never reverses direction, nor does any other planet. The APPARENT reversal of direction of some other planets, as seen from earth, is called retrograde motion.
Which planets is called living planet?
Earth
What kind of planets are Earth and Mars?
Earth and Mars, along with Mercury and Venus, are rocky planets.
What do the planets do to incur retrograde motion?
The planets don't have to "do anything" to "go into" retrograde motion. The retrograde motion, the "moving backward" that planets do as we watch them cross the night sky over the weeks, is due to the nature of the orbit of a planet and to our view of that orbit from earth.
What is the difference between geocentric heliocentric and planetary motion?
Geocentric motion of planet is that in which earth is at the centre of the universe and all other planets revolving around it.Heliocentric motion of planets is that in which sun is the of universe and other planets revolving around it.In planetary motion all the planets includes Earth revolving around the Sun in their fixed orbit.
Are there alien planets?
All planets other than Earth could be considered alien. Earth is the only planet known to harbor life.
Which planet is not gaseous?
The non-gaseous planets, called Rocky planets are Mercury, Venues, Earth and Mars.
Is a planet bigger than the world?
The world is a planet called Earth. In our solar system of eight planets Earth is the fifth largest.
What is the main different between the geocentric and heliocentric models of planetary motion?
in a heliocentric system earth and the other planets revolving planet's a geocentric system ,earth is at the center of the revolving planets
What is Earth's part around the sun called?
The path of Earth (or other planets) around the Sun is called the planet's orbit.
