Table of Contents
- 1 What might happen to a planet that gets very close to the Sun Why?
- 2 Why do you think planets farther away from the Sun take a longer time to make one complete revolution?
- 3 Why do you think the planets closer to the Sun are rocky and dense?
- 4 Why is Venus so much hotter than Mercury?
- 5 Which is the closest planet to the Sun that does not have the same ellipse?
What might happen to a planet that gets very close to the Sun Why?
The closer a planet is to the Sun, the less time it takes for it to go around the Sun. It takes less time because the length of the orbit is shorter (a smaller orbit), but it also moves faster in its orbit. Thanks to gravity, it has to move faster in its orbit to stay in orbit!
What happens when a planet is closest to the Sun?
When a planet is closer to the Sun the Sun’s gravitational pull is stronger, so the planet moves faster. When a planet is further away from the sun the Sun’s gravitational pull is weaker, so the planet moves slower in its orbit.
Why are the planets closest to our sun different from the planets further away?
In the areas closer to the Sun, it’s too warm for the lighter gases to condense there, and so the larger gas and ice giants tended to form further from the Sun.
Why do you think planets farther away from the Sun take a longer time to make one complete revolution?
Planets that orbit closer to the Sun than Earth have shorter years than Earth. Planets that orbit farther from the Sun than Earth have longer years than Earth. This happens for two main reasons. The stronger the pull of the Sun’s gravity, the faster the planet orbits.
Why planets move faster at near region of sun and slower when they are far away 3?
A planet’s orbital speed changes, depending on how far it is from the Sun. The closer a planet is to the Sun, the stronger the Sun’s gravitational pull on it, and the faster the planet moves. The farther it is from the Sun, the weaker the Sun’s gravitational pull, and the slower it moves in its orbit.
Why are the planets different?
Planets have different properties because they are different distances away from the sun, are different sizes, and are made up of different stuff from the earth. Very tiny planets do not have enough gravitational field to keep much of an atmosphere in. The earth too changes from time to time.
Why do you think the planets closer to the Sun are rocky and dense?
The planets nearest to the star tend to be rockier because the star’s wind blows away their gases and because they are made of heavier materials attracted by the star’s gravity. In the Sun’s system, Earth is one of four rocky planets, but a unique one, with rigid and molten layers.
What have you noticed about the time it will take the planets to revolve the Sun?
Revolution is the movement of one body in space around another body. The path a body follows is called its orbit. Until the early 1600’s, scientists believed that the planets traveled in perfect circles around the sun….
| Planet | Period of Revolution |
|---|---|
| Mars | 687 days |
| Jupiter | 11.9 years |
| Saturn | 29.5 years |
| Uranus | 84 years |
Do planets closer to the Sun travel faster or slower than planets farther from the Sun?
Therefore the planet moves faster when it is nearer the Sun and slower when it is farther from the Sun. A planet moves with constantly changing speed as it moves about its orbit. The fastest a planet moves is at perihelion (closest) and the slowest is at aphelion (farthest).
Why is Venus so much hotter than Mercury?
The reason why Venus is hotter than Mercury is because it has a thick atmosphere primarily made up of carbon dioxide. In comparison to this, Mercury has almost no atmosphere, so any heat that beats down on the planet isn’t retained. How hot can the planet get? Well, on average Venus has been shown to stay at a temperature of around 460°c.
What was the planet between Mercury and the Sun?
(Photo Credit: NASA/Johns Hopkins University / Wikimedia Commons) After rigorously examining Edmond’s data, Le Verrier, in 1860, officially announced to the world the discovery of Vulcan, the planet between Mercury and the Sun.
How often does Mercury pass across the Sun?
However, 13 times each century, observers on Earth can watch Mercury pass across the face of the Sun, an event called a transit. These rare transits fall within several days of May 8 and November 10. Previous transits occurred May 7, 2003, Nov. 8, 2006, and May 9, 2016, and Nov. 11, 2019.
Which is the closest planet to the Sun that does not have the same ellipse?
The Solar System’s closest or innermost planet doesn’t trace the same ellipse during each orbit either; it suffers what is called anomalous precession. It is also called the precession of the perihelion of Mercury, as its perihelion, its ellipse’s closest point to the Sun, sidles or drifts forward each orbit.