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How long ago is the hypothesized Theia planetary mass object thought to have grazed Earth?
Ginezumi
Roughly 4.5 billion years ago, putting it very early in the history of the Solar System.
Wiki User
∙ 8y ago
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What does ''drwaf plannet'' mean?
It means a planet that is to small to be called one. EG. Pluto is a planetary object but its size denies it of being called a planet.
What is the relationship of the speed of revolution of a planetary object to the position of the planetary object in the solar system?
Kepler's third law says that the time of one revolution round the Sun is proportional to the distance raised to the power 3/2.That means that a planet at a distance of 4 astronomical units would have a rotation period of 8 years. At 9 astronomical units it would take 27 years.
Why people no longer regard Pluto as a planet?
Technically, the planetary status of pluto is no longer a planet, but the term "planet" is simply a name. Scientists have decided that Pluto is no longer a planet mainly because it is just too small. Larger planetary objects have been discovered, and those are not considered planets, so just to keep things simple, Pluto is not considered a planet but as a large planetary object.
Why did Galileo use a thought experiment instead of working with real object?
He got a car and did do
Why does planetary cooling happen?
Because of the second law of thermodynamics , law of entropy. "when energy flows from a high-temperature object to a low-temperature object, the source temperature is decreased while the sink temperature is increased; hence temperature differences tend to diminish over time."
What is the guesstimated diameter of the hypothesized Theia planetary mass object?
It's generally thought to have been roughly the size of Mars, which has a diameter of about 6800 km.
What are planetary satellites?
a planetary satellite is any object that orbits a planet
What is the difference between a planetary object and a moon?
A planetary body is a non-luminous object rounded by it's own gravity that orbits a star or a stellar remnant. A moon, or satellite, orbits a planetary body.
A rocky object that has an irregularly shaped body made of planetary material and orbits the Sun is a?
Asteroid
What object in space do not directly orbit the sun?
Planetary satellites, like the moon; other stars, galaxies.
Which planetary object has no moon?
Within our solar system neither Venus or Mercury have moons.
What is planetary theory?
Any theory which involves things orbiting round a central object. Such as the early theory of atomic structure.
What was the first thing to go to space?
It has been hypothesized that the "first" object from earth the exit the atmosphere and enter space was in fact the moon. However, the first documented man-made object to enter orbit was the Soviet satellite Sputnik, in 1957.
What does plannet mean?
It means a planet that is to small to be called one. EG. Pluto is a planetary object but its size denies it of being called a planet.
Does the speed of planetary orbits increase the closer the planet is to the sun?
Yes. Planets (and other things) orbit at a higher speed the closer they are to the object they are orbiting.
What does ''drwaf plannet'' mean?
It means a planet that is to small to be called one. EG. Pluto is a planetary object but its size denies it of being called a planet.
What is the relationship of the speed of revolution of a planetary object to the position of the planetary object in the solar system?
Kepler's third law says that the time of one revolution round the Sun is proportional to the distance raised to the power 3/2.That means that a planet at a distance of 4 astronomical units would have a rotation period of 8 years. At 9 astronomical units it would take 27 years.
